MathHelper

Abs

public static decimal Abs(decimal value)

result = MathHelper.Abs(value)

Returns the absolute value of the decimal .

value: The decimal value.

返回值: The absolute value.

Abs

public static short Abs(short value)

result = MathHelper.Abs(value)

Returns the absolute value of the short .

value: The short integer.

返回值: The absolute value.

Abs

public static int Abs(int value)

result = MathHelper.Abs(value)

Returns the absolute value of the integer .

value: The integer value.

返回值: The absolute value.

Abs

public static long Abs(long value)

result = MathHelper.Abs(value)

Returns the absolute value of the long integer .

value: The long integer.

返回值: The absolute value.

Abs

public static sbyte Abs(sbyte value)

result = MathHelper.Abs(value)

Returns the absolute value of the sbyte .

value: The sbyte value.

返回值: The absolute value.

Abs

public static float Abs(float value)

result = MathHelper.Abs(value)

Returns the absolute value of the float .

value: The float value.

返回值: The absolute value.

Abs

public static double Abs(double value)

result = MathHelper.Abs(value)

Returns the absolute value of the double .

value: The double value.

返回值: The absolute value.

Abs

public static TimeSpan Abs(TimeSpan value)

result = MathHelper.Abs(value)

Returns a TimeSpan whose ticks are the absolute value of the original TimeSpan's ticks.

value: The TimeSpan value.

返回值: The TimeSpan with absolute ticks.

Acos

public static decimal Acos(decimal value)

result = MathHelper.Acos(value)

Returns the angle whose cosine is the specified decimal value.

value: A decimal value representing a cosine.

返回值: The angle, in radians, whose cosine is the specified value.

Acos

public static double Acos(double value)

result = MathHelper.Acos(value)

Returns the angle whose cosine is the specified value.

value: A double value representing a cosine.

返回值: The angle, in radians, whose cosine is the specified value.

Asin

public static decimal Asin(decimal value)

result = MathHelper.Asin(value)

Returns the angle whose sine is the specified decimal value.

value: A decimal value representing a sine.

返回值: The angle, in radians, whose sine is the specified value.

Asin

public static double Asin(double value)

result = MathHelper.Asin(value)

Returns the angle whose sine is the specified value.

value: A double value representing a sine.

返回值: The angle, in radians, whose sine is the specified value.

AsRaw

public static long AsRaw(double value)

result = MathHelper.AsRaw(value)

Gets the raw 64-bit integer representation of the double value.

value: The double value.

返回值: The 64-bit integer representation.

AsRaw

public static double AsRaw(long value)

result = MathHelper.AsRaw(value)

Converts a 64-bit integer representation to a double value.

value: The 64-bit integer representation.

返回值: The double value.

AsRaw

public static float AsRaw(int value)

result = MathHelper.AsRaw(value)

Converts an integer value to a single-precision float via a byte array conversion.

value: The integer value.

返回值: The float value.

AsRaw

public static int AsRaw(float value)

result = MathHelper.AsRaw(value)

Converts a float value to its raw 32-bit integer representation.

value: The float value.

返回值: The 32-bit integer representation.

Atan

public static decimal Atan(decimal value)

result = MathHelper.Atan(value)

Returns the angle whose tangent is the specified decimal value.

value: A decimal value representing a tangent.

返回值: The angle, in radians, whose tangent is the specified value.

Atan

public static double Atan(double value)

result = MathHelper.Atan(value)

Returns the angle whose tangent is the specified value.

value: A double value representing a tangent.

返回值: The angle, in radians, whose tangent is the specified value.

Atan2

public static decimal Atan2(decimal y, decimal x)

result = MathHelper.Atan2(y, x)

Returns the angle whose tangent is the quotient of two specified decimal numbers.

y: The y coordinate.
x: The x coordinate.

返回值: The angle, in radians, whose tangent is the quotient of y and x.

Atan2

public static double Atan2(double y, double x)

result = MathHelper.Atan2(y, x)

Returns the angle whose tangent is the quotient of two specified double numbers.

y: The y coordinate.
x: The x coordinate.

返回值: The angle, in radians, whose tangent is the quotient of y and x.

BigMul

public static long BigMul(int x, int y)

result = MathHelper.BigMul(x, y)

Returns the full product of two integers.

x: The first integer.
y: The second integer.

返回值: The product as a long.

Ceiling

public static int Ceiling(float value)

result = MathHelper.Ceiling(value)

Returns the smallest integer greater than or equal to the float value.

value: The float value.

返回值: The ceiling integer.

Ceiling

public static decimal Ceiling(decimal value)

result = MathHelper.Ceiling(value)

Returns the smallest integer greater than or equal to the specified .

value: The decimal value.

返回值: The ceiled value.

Ceiling

public static decimal Ceiling(decimal value, decimal step)

result = MathHelper.Ceiling(value, step)

Returns the smallest multiple of greater than or equal to the specified .

value: The decimal value.
step: The step size.

返回值: The ceiled value.

Ceiling

public static long Ceiling(double value)

result = MathHelper.Ceiling(value)

Returns the smallest integer greater than or equal to the specified double as a long.

value: The double value.

返回值: The ceiled value as long.

Cos

public static double Cos(double value)

result = MathHelper.Cos(value)

Returns the cosine of the specified double angle.

value: An angle, measured in radians.

返回值: The cosine of the angle.

Cos

public static decimal Cos(decimal value)

result = MathHelper.Cos(value)

Returns the cosine of the specified decimal angle.

value: An angle, measured in radians (as decimal).

返回值: The cosine of the angle as a decimal.

Cosh

public static double Cosh(double value)

result = MathHelper.Cosh(value)

Returns the hyperbolic cosine of the specified double angle.

value: An angle, measured in radians.

返回值: The hyperbolic cosine of the angle.

Cosh

public static decimal Cosh(decimal value)

result = MathHelper.Cosh(value)

Returns the hyperbolic cosine of the specified decimal angle.

value: An angle, measured in radians (as decimal).

返回值: The hyperbolic cosine of the angle as a decimal.

DivRem

public static long DivRem(long a, long b, long result)

result = MathHelper.DivRem(a, b, result)

Computes the quotient and remainder of the division of two long integers.

a: The dividend.
b: The divisor.
result: When the method returns, contains the remainder.

返回值: The quotient.

DivRem

public static int DivRem(int a, int b, int result)

result = MathHelper.DivRem(a, b, result)

Computes the quotient and remainder of the division of two integers.

a: The dividend.
b: The divisor.
result: When the method returns, contains the remainder.

返回值: The quotient.

Exp

public static double Exp(double value)

result = MathHelper.Exp(value)

Returns e raised to the specified double power.

value: A double exponent.

返回值: The value of e raised to the specified power.

Exp

public static decimal Exp(decimal value)

result = MathHelper.Exp(value)

Returns e raised to the specified decimal power.

value: A decimal exponent.

返回值: The value of e raised to the specified power as a decimal.

ExtractMantissaExponent

public static void ExtractMantissaExponent(double value, long mantissa, int exponent)

MathHelper.ExtractMantissaExponent(value, mantissa, exponent)

Extracts the normalized mantissa and exponent from the double value.

value: The double value.
mantissa: The extracted mantissa (negative for negative values).
exponent: The extracted exponent.

ExtractMantissaExponent

public static ValueTuple<long, int> ExtractMantissaExponent(decimal value)

result = MathHelper.ExtractMantissaExponent(value)

Extracts the mantissa and exponent from the decimal value.

value: The decimal value.

返回值: The extracted mantissa and exponent.

Floor

public static int Floor(float value)

result = MathHelper.Floor(value)

Returns the largest integer less than or equal to the float value.

value: The float value.

返回值: The floor integer.

Floor

public static decimal Floor(decimal value, decimal step)

result = MathHelper.Floor(value, step)

Returns the largest multiple of less than or equal to the specified .

value: The decimal value.
step: The step size.

返回值: The floored value.

Floor

public static double Floor(double value, double step)

result = MathHelper.Floor(value, step)

Returns the largest multiple of less than or equal to the double .

value: The double value.
step: The step size.

返回值: The floored value.

Floor

public static float Floor(float value, float step)

result = MathHelper.Floor(value, step)

Returns the largest multiple of less than or equal to the float .

value: The float value.
step: The step size.

返回值: The floored value.

Floor

public static long Floor(long value, long step)

result = MathHelper.Floor(value, step)

Returns the largest multiple of less than or equal to the long integer .

value: The long integer value.
step: The step size.

返回值: The floored value.

Floor

public static int Floor(int value, int step)

result = MathHelper.Floor(value, step)

Returns the largest multiple of less than or equal to the integer .

value: The integer value.
step: The step size.

返回值: The floored value.

Floor

public static long Floor(double value)

result = MathHelper.Floor(value)

Returns the largest integer less than or equal to the specified double as a long.

value: The double value.

返回值: The floored value as long.

Floor

public static decimal Floor(decimal value)

result = MathHelper.Floor(value)

Returns the largest integer less than or equal to the specified .

value: The decimal value.

返回值: The floored value.

GetBit

public static bool GetBit(int value, int index)

result = MathHelper.GetBit(value, index)

Gets the state of the bit at the specified index in an integer.

value: The integer value.
index: The bit index (0-based).

返回值: True if the bit is set; otherwise, false.

GetBit

public static bool GetBit(long value, int index)

result = MathHelper.GetBit(value, index)

Gets the state of the bit at the specified index in a long value.

value: The long value.
index: The bit index (0-based).

返回值: True if the bit is set; otherwise, false.

GetBit

public static bool GetBit(byte value, int index)

result = MathHelper.GetBit(value, index)

Determines whether the bit at the specified zero-based index in the byte is set.

value: The byte value.
index: The zero-based index of the bit to test.

返回值: true if the specified bit is set; otherwise, false.

GetCachedDecimals

public static int GetCachedDecimals(decimal value)

result = MathHelper.GetCachedDecimals(value)

Gets the effective scale (number of significant decimal places) of the decimal value, using caching for performance.

value: The decimal value.

返回值: The effective scale of the decimal.

GetDecimalInfo

public static DecimalInfo GetDecimalInfo(decimal value)

result = MathHelper.GetDecimalInfo(value)

Retrieves detailed information about the decimal value, including mantissa, precision, scale, and trailing zeros.

value: The decimal value.

返回值: A DecimalInfo structure containing detailed decimal information.

GetDigitCount

public static int GetDigitCount(long x)

result = MathHelper.GetDigitCount(x)

Returns the number of digits in a positive long integer.

x: The positive long integer value.

返回值: The digit count.

GetDigitCount

public static int GetDigitCount(int x)

result = MathHelper.GetDigitCount(x)

Returns the number of digits in a positive integer.

x: The positive integer value.

返回值: The digit count.

GetMiddle

public static decimal GetMiddle(decimal from, decimal to)

result = MathHelper.GetMiddle(from, to)

Calculates the middle (average) value between two decimal values.

from: The first value.
to: The second value.

返回值: The middle value as a decimal.

GetMiddle

public static decimal GetMiddle(double from, double to)

result = MathHelper.GetMiddle(from, to)

Calculates the middle (average) value between two double values.

from: The first value.
to: The second value.

返回值: The middle value as a decimal.

GetMiddle

public static decimal GetMiddle(float from, float to)

result = MathHelper.GetMiddle(from, to)

Calculates the middle (average) value between two float values.

from: The first value.
to: The second value.

返回值: The middle value as a decimal.

GetMiddle

public static decimal GetMiddle(long from, long to)

result = MathHelper.GetMiddle(from, to)

Calculates the middle (average) value between two long integer values.

from: The first value.
to: The second value.

返回值: The middle value as a decimal.

GetMiddle

public static decimal GetMiddle(int from, int to)

result = MathHelper.GetMiddle(from, to)

Calculates the middle (average) value between two integer values.

from: The first value.
to: The second value.

返回值: The middle value as a decimal.

GetMiddle

public static decimal GetMiddle(short from, short to)

result = MathHelper.GetMiddle(from, to)

Calculates the middle (average) value between two short values.

from: The first value.
to: The second value.

返回值: The middle value as a decimal.

GetParts

public static float[] GetParts(float value)

result = MathHelper.GetParts(value)

Splits a float value into its integer and fractional parts.

value: The float value.

返回值: An array with the integer part and the fractional remainder.

GetParts

public static double[] GetParts(double value)

result = MathHelper.GetParts(value)

Splits a double value into its integer and fractional parts.

value: The double value.

返回值: An array with the integer part and the fractional remainder.

GetParts

public static int[] GetParts(long value)

result = MathHelper.GetParts(value)

Extracts the high and low parts of a long value.

value: The long value.

返回值: An array with two integers: the low and high parts.

GetRoots

public static double[] GetRoots(double a, double b, double c)

result = MathHelper.GetRoots(a, b, c)

Calculates the real roots of a quadratic equation given coefficients a, b, and c.

a: Coefficient a.
b: Coefficient b.
c: Coefficient c.

返回值: An array containing the two roots if the discriminant is non-negative; otherwise, an empty array.

HasBits

public static bool HasBits(long value, long part)

result = MathHelper.HasBits(value, part)

Determines whether the specified bits are set in the long integer value.

value: The long integer value.
part: The bits to test.

返回值: true if all specified bits are set; otherwise, false.

HasBits

public static bool HasBits(int value, int part)

result = MathHelper.HasBits(value, part)

Determines whether the specified bits are set in the integer value.

value: The integer value.
part: The bits to test.

返回值: true if all specified bits are set; otherwise, false.

IsInfinity

public static bool IsInfinity(double value)

result = MathHelper.IsInfinity(value)

Determines if the double value represents infinity.

value: The double value.

返回值: true if the value is infinity; otherwise, false.

IsInfinity

public static bool IsInfinity(float value)

result = MathHelper.IsInfinity(value)

Determines if the float value represents infinity.

value: The float value.

返回值: true if the value is infinity; otherwise, false.

IsNaN

public static bool IsNaN(double value)

result = MathHelper.IsNaN(value)

Determines if the double value is NaN (Not a Number).

value: The double value.

返回值: true if the value is NaN; otherwise, false.

IsNaN

public static bool IsNaN(float value)

result = MathHelper.IsNaN(value)

Determines if the float value is NaN (Not a Number).

value: The float value.

返回值: true if the value is NaN; otherwise, false.

IsNegativeInfinity

public static bool IsNegativeInfinity(float value)

result = MathHelper.IsNegativeInfinity(value)

Determines if the float value represents negative infinity.

value: The float value.

返回值: true if the value is negative infinity; otherwise, false.

IsNegativeInfinity

public static bool IsNegativeInfinity(double value)

result = MathHelper.IsNegativeInfinity(value)

Determines if the double value represents negative infinity.

value: The double value.

返回值: true if the value is negative infinity; otherwise, false.

IsPositiveInfinity

public static bool IsPositiveInfinity(float value)

result = MathHelper.IsPositiveInfinity(value)

Determines if the float value represents positive infinity.

value: The float value.

返回值: true if the value is positive infinity; otherwise, false.

IsPositiveInfinity

public static bool IsPositiveInfinity(double value)

result = MathHelper.IsPositiveInfinity(value)

Determines if the double value represents positive infinity.

value: The double value.

返回值: true if the value is positive infinity; otherwise, false.

Log

public static decimal Log(decimal value, decimal newBase)

result = MathHelper.Log(value, newBase)

Returns the logarithm of a decimal value in the specified base.

value: The decimal value.
newBase: The base of the logarithm.

返回值: The logarithm of the value in the specified base as a decimal.

Log

public static double Log(double value)

result = MathHelper.Log(value)

Returns the natural logarithm of a double value.

value: The double value.

返回值: The natural logarithm of the value.

Log

public static decimal Log(decimal value)

result = MathHelper.Log(value)

Returns the natural logarithm of a decimal value.

value: The decimal value.

返回值: The natural logarithm of the value as a decimal.

Log

public static double Log(double value, double newBase)

result = MathHelper.Log(value, newBase)

Returns the logarithm of a double value in the specified base.

value: The double value.
newBase: The base of the logarithm.

返回值: The logarithm of value in the specified base.

Log10

public static decimal Log10(decimal value)

result = MathHelper.Log10(value)

Returns the base 10 logarithm of a decimal value.

value: The decimal value.

返回值: The base 10 logarithm of the value as a decimal.

Log10

public static double Log10(double value)

result = MathHelper.Log10(value)

Returns the base 10 logarithm of a double value.

value: The double value.

返回值: The base 10 logarithm of the value.

Max

public static decimal Max(decimal v1, decimal v2, decimal v3, decimal v4)

result = MathHelper.Max(v1, v2, v3, v4)

Returns the largest of four decimal values.

Max

public static decimal Max(decimal v1, decimal v2, decimal v3, decimal v4, decimal v5)

result = MathHelper.Max(v1, v2, v3, v4, v5)

Returns the largest of five decimal values.

Max

public static DateTimeOffset Max(DateTimeOffset value1, DateTimeOffset value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two DateTimeOffset values.

value1: The first DateTimeOffset value.
value2: The second DateTimeOffset value.

返回值: The later DateTimeOffset.

Max

public static decimal Max(decimal v1, decimal v2, decimal v3)

result = MathHelper.Max(v1, v2, v3)

Returns the largest of three decimal values.

Max

public static decimal Max(decimal value1, decimal value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two decimal values.

value1: The first decimal value.
value2: The second decimal value.

返回值: The larger decimal value.

Max

public static double Max(double value1, double value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two double values.

value1: The first double value.
value2: The second double value.

返回值: The larger double value.

Max

public static float Max(float value1, float value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two float values.

value1: The first float value.
value2: The second float value.

返回值: The larger float value.

Max

public static byte Max(byte value1, byte value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two byte values.

value1: The first byte value.
value2: The second byte value.

返回值: The larger byte value.

Max

public static sbyte Max(sbyte value1, sbyte value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two sbyte values.

value1: The first sbyte value.
value2: The second sbyte value.

返回值: The larger sbyte value.

Max

public static ulong Max(ulong value1, ulong value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two ulong values.

value1: The first ulong value.
value2: The second ulong value.

返回值: The larger ulong value.

Max

public static long Max(long value1, long value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two long values.

value1: The first long value.
value2: The second long value.

返回值: The larger long value.

Max

public static TimeSpan Max(TimeSpan value1, TimeSpan value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two TimeSpan values.

value1: The first TimeSpan value.
value2: The second TimeSpan value.

返回值: The longer TimeSpan.

Max

public static uint Max(uint value1, uint value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two uint values.

value1: The first uint value.
value2: The second uint value.

返回值: The larger uint value.

Max

public static ushort Max(ushort value1, ushort value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two ushort values.

value1: The first ushort value.
value2: The second ushort value.

返回值: The larger ushort value.

Max

public static short Max(short value1, short value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two short values.

value1: The first short value.
value2: The second short value.

返回值: The larger short value.

Max

public static int Max(int value1, int value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two int values.

value1: The first int value.
value2: The second int value.

返回值: The larger int value.

Max

public static DateTime Max(DateTime value1, DateTime value2)

result = MathHelper.Max(value1, value2)

Returns the maximum of two DateTime values.

value1: The first DateTime value.
value2: The second DateTime value.

返回值: The later DateTime.

Min

public static DateTimeOffset Min(DateTimeOffset value1, DateTimeOffset value2)

result = MathHelper.Min(value1, value2)

Returns the minimum of two DateTimeOffset values.

value1: The first DateTimeOffset value.
value2: The second DateTimeOffset value.

返回值: The smaller DateTimeOffset value.

Min

public static DateTime Min(DateTime value1, DateTime value2)

result = MathHelper.Min(value1, value2)

Returns the earlier DateTime.

value1: The first DateTime.
value2: The second DateTime.

返回值: The minimum DateTime.

Min

public static TimeSpan Min(TimeSpan value1, TimeSpan value2)

result = MathHelper.Min(value1, value2)

Returns the earlier TimeSpan.

value1: The first TimeSpan.
value2: The second TimeSpan.

返回值: The minimum TimeSpan.

Min

public static decimal Min(decimal v1, decimal v2, decimal v3, decimal v4, decimal v5)

result = MathHelper.Min(v1, v2, v3, v4, v5)

Returns the smallest of five decimal values.

Min

public static decimal Min(decimal v1, decimal v2, decimal v3, decimal v4)

result = MathHelper.Min(v1, v2, v3, v4)

Returns the smallest of four decimal values.

Min

public static decimal Min(decimal v1, decimal v2, decimal v3)

result = MathHelper.Min(v1, v2, v3)

Returns the smallest of three decimal values.

Min

public static decimal Min(decimal value1, decimal value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two decimal values.

value1: The first decimal value.
value2: The second decimal value.

返回值: The minimum value.

Min

public static uint Min(uint value1, uint value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two uint values.

value1: The first uint value.
value2: The second uint value.

返回值: The minimum value.

Min

public static double Min(double value1, double value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two double values.

value1: The first double value.
value2: The second double value.

返回值: The minimum value.

Min

public static float Min(float value1, float value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two float values.

value1: The first float value.
value2: The second float value.

返回值: The minimum value.

Min

public static byte Min(byte value1, byte value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two byte values.

value1: The first byte value.
value2: The second byte value.

返回值: The minimum value.

Min

public static int Min(int value1, int value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two integer values.

value1: The first integer value.
value2: The second integer value.

返回值: The minimum value.

Min

public static sbyte Min(sbyte value1, sbyte value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two sbyte values.

value1: The first sbyte value.
value2: The second sbyte value.

返回值: The minimum value.

Min

public static ushort Min(ushort value1, ushort value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two ushort values.

value1: The first ushort value.
value2: The second ushort value.

返回值: The minimum value.

Min

public static short Min(short value1, short value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two short values.

value1: The first short value.
value2: The second short value.

返回值: The minimum value.

Min

public static long Min(long value1, long value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two long values.

value1: The first long value.
value2: The second long value.

返回值: The minimum value.

Min

public static ulong Min(ulong value1, ulong value2)

result = MathHelper.Min(value1, value2)

Returns the smaller of two ulong values.

value1: The first ulong value.
value2: The second ulong value.

返回值: The minimum value.

Pow

public static double Pow(double x, double y)

result = MathHelper.Pow(x, y)

Raises a double number to the power of a double exponent.

x: The base double value.
y: The exponent double value.

返回值: The resulting double value.

Pow

public static int Pow(int x, int y)

result = MathHelper.Pow(x, y)

Raises an int number to the power of an int exponent.

x: The base int value.
y: The exponent int value.

返回值: The resulting int value.

Pow

public static decimal Pow(decimal x, decimal y)

result = MathHelper.Pow(x, y)

Raises a decimal number to the power of another decimal number.

x: The base decimal value.
y: The exponent decimal value.

返回值: The resulting decimal value.

Remainder

public static double Remainder(double x, double y)

result = MathHelper.Remainder(x, y)

Returns the IEEE remainder of two double values.

x: The dividend.
y: The divisor.

返回值: The remainder after division.

Remainder

public static decimal Remainder(decimal x, decimal y)

result = MathHelper.Remainder(x, y)

Returns the IEEE remainder of two decimal values.

x: The dividend.
y: The divisor.

返回值: The remainder after division as a decimal.

RemoveTrailingZeros

public static decimal RemoveTrailingZeros(decimal value)

result = MathHelper.RemoveTrailingZeros(value)

Removes insignificant trailing zeros from the decimal value.

value: The decimal value.

返回值: The decimal value without trailing zeros.

Round

public static decimal Round(decimal value, int digits)

result = MathHelper.Round(value, digits)

Rounds the specified to a specified number of fractional digits.

value: The decimal value.
digits: The number of fractional digits.

返回值: The rounded value.

Round

public static double Round(double value, MidpointRounding rounding)

result = MathHelper.Round(value, rounding)

Rounds the double using the specified rounding mode.

value: The double value.
rounding: The rounding mode.

返回值: The rounded value.

Round

public static double Round(double value, int digits, MidpointRounding rounding)

result = MathHelper.Round(value, digits, rounding)

Rounds the double to a specified number of digits using the specified rounding mode.

value: The double value.
digits: The number of fractional digits.
rounding: The rounding mode.

返回值: The rounded value.

Round

public static double Round(double value)

result = MathHelper.Round(value)

Rounds the double value to the nearest integer.

value: The double value to round.

返回值: The rounded double value.

Round

public static decimal Round(decimal value, decimal step, int? digits, MidpointRounding rounding)

result = MathHelper.Round(value, step, digits, rounding)

Rounds the specified to the nearest multiple of , and optionally rounds to the specified number of digits.

value: The decimal value.
step: The step size.
digits: Optional number of fractional digits.
rounding: The rounding mode (defaults to ToEven).

返回值: The rounded value.

Round

public static decimal Round(decimal value, MidpointRounding rounding)

result = MathHelper.Round(value, rounding)

Rounds the specified using the specified rounding mode.

value: The decimal value.
rounding: The rounding mode.

返回值: The rounded value.

Round

public static decimal Round(decimal value, int digits, MidpointRounding rounding)

result = MathHelper.Round(value, digits, rounding)

Rounds the specified to the specified number of fractional digits using the specified rounding mode.

value: The decimal value.
digits: The number of fractional digits.
rounding: The rounding mode.

返回值: The rounded value.

Round

public static double Round(double value, int digits)

result = MathHelper.Round(value, digits)

Rounds the double value to the specified number of fractional digits.

value: The double value to round.
digits: The number of decimal places to round to.

返回值: The rounded double value.

Round

public static decimal Round(decimal value)

result = MathHelper.Round(value)

Rounds the specified to the nearest integer.

value: The decimal value.

返回值: The rounded value.

Round4Expression

public static decimal Round4Expression(decimal value, decimal digits)

result = MathHelper.Round4Expression(value, digits)

Rounds the specified to a specified number of fractional digits.

value: The decimal value.
digits: The number of fractional digits (as decimal, will be converted to int).

返回值: The rounded value.

RoundToNearest

public static double RoundToNearest(double value)

result = MathHelper.RoundToNearest(value)

Rounds the double value to the nearest significant digit.

value: The double value.

返回值: The rounded value.

SetBit

public static byte SetBit(byte value, int index, bool bit)

result = MathHelper.SetBit(value, index, bit)

Sets or clears the bit at the specified index in the byte.

value: The byte value.
index: The zero-based index of the bit to modify.
bit: If set to true, the bit is set; otherwise, it is cleared.

返回值: The modified byte value.

SetBit

public static int SetBit(int value, int index, bool bit)

result = MathHelper.SetBit(value, index, bit)

Sets or clears the bit at the specified index in an integer.

value: The integer value.
index: The bit index (0-based).
bit: True to set the bit; false to clear it.

返回值: The resulting integer value after modification.

SetBit

public static long SetBit(long value, int index, bool bit)

result = MathHelper.SetBit(value, index, bit)

Sets or clears the bit at the specified index in a long value.

value: The long value.
index: The bit index (0-based).
bit: True to set the bit; false to clear it.

返回值: The resulting long value after modification.

Sign

public static int Sign(float value)

result = MathHelper.Sign(value)

Returns the sign of a float value.

value: The float value.

返回值: -1, 0, or 1 depending on the sign of the value.

Sign

public static int Sign(sbyte value)

result = MathHelper.Sign(value)

Returns the sign of a sbyte value.

value: The sbyte value.

返回值: -1, 0, or 1 depending on the sign of the value.

Sign

public static int Sign(double value)

result = MathHelper.Sign(value)

Returns the sign of a double value.

value: The double value.

返回值: -1, 0, or 1 depending on the sign of the value.

Sign

public static int Sign(decimal value)

result = MathHelper.Sign(value)

Returns the sign of a decimal value.

value: The decimal value.

返回值: -1, 0, or 1 depending on the sign of the value.

Sign

public static int Sign(TimeSpan value)

result = MathHelper.Sign(value)

Returns the sign of a TimeSpan value.

value: The TimeSpan value.

返回值: -1, 0, or 1 depending on the sign of the Ticks.

Sign

public static int Sign(long value)

result = MathHelper.Sign(value)

Returns the sign of a long value.

value: The long value.

返回值: -1, 0, or 1 depending on the sign of the value.

Sign

public static int Sign(int value)

result = MathHelper.Sign(value)

Returns the sign of an int value.

value: The int value.

返回值: -1, 0, or 1 depending on the sign of the value.

Sign

public static int Sign(short value)

result = MathHelper.Sign(value)

Returns the sign of a short value.

value: The short value.

返回值: -1, 0, or 1 depending on the sign of the value.

Sin

public static decimal Sin(decimal value)

result = MathHelper.Sin(value)

Returns the sine of the specified decimal angle.

value: An angle, measured in radians (as decimal).

返回值: The sine of the angle as a decimal.

Sin

public static double Sin(double value)

result = MathHelper.Sin(value)

Returns the sine of the specified double angle.

value: An angle, measured in radians.

返回值: The sine of the angle.

Sinh

public static decimal Sinh(decimal value)

result = MathHelper.Sinh(value)

Returns the hyperbolic sine of the specified decimal angle.

value: An angle, measured in radians (as decimal).

返回值: The hyperbolic sine of the angle as a decimal.

Sinh

public static double Sinh(double value)

result = MathHelper.Sinh(value)

Returns the hyperbolic sine of the specified double angle.

value: An angle, measured in radians.

返回值: The hyperbolic sine of the angle.

Sqrt

public static decimal Sqrt(decimal value)

result = MathHelper.Sqrt(value)

Returns the square root of the decimal value.

value: The decimal value.

返回值: The square root of the value.

Sqrt

public static double Sqrt(double value)

result = MathHelper.Sqrt(value)

Returns the square root of the double value.

value: The double value.

返回值: The square root of the value.

Tan

public static double Tan(double value)

result = MathHelper.Tan(value)

Returns the tangent of the specified double angle.

value: An angle, measured in radians.

返回值: The tangent of the angle.

Tan

public static decimal Tan(decimal value)

result = MathHelper.Tan(value)

Returns the tangent of the specified decimal angle.

value: An angle, measured in radians (as decimal).

返回值: The tangent of the angle as a decimal.

Tanh

public static double Tanh(double value)

result = MathHelper.Tanh(value)

Returns the hyperbolic tangent of the specified double angle.

value: An angle, measured in radians.

返回值: The hyperbolic tangent of the angle.

Tanh

public static decimal Tanh(decimal value)

result = MathHelper.Tanh(value)

Returns the hyperbolic tangent of the specified decimal angle.

value: An angle, measured in radians (as decimal).

返回值: The hyperbolic tangent of the angle as a decimal.

ToAngles

public static double ToAngles(double radian)

result = MathHelper.ToAngles(radian)

Converts an angle in radians to degrees.

radian: The angle in radians.

返回值: The angle in degrees.

ToDecimal

public static decimal ToDecimal(long mantissa, int exponent)

result = MathHelper.ToDecimal(mantissa, exponent)

Creates a decimal value from a given mantissa and exponent by applying power-of-ten adjustments.

mantissa: The mantissa.
exponent: The exponent, where positive values scale up and negative values scale down.

返回值: The resulting decimal value.

ToDecimal

public static decimal? ToDecimal(double value)

result = MathHelper.ToDecimal(value)

Converts a double to a decimal if within the allowed range; otherwise, returns null.

value: The double value.

返回值: The converted decimal value or null when conversion is not possible.

ToDecimal

public static decimal? ToDecimal(float value)

result = MathHelper.ToDecimal(value)

Converts a float to a decimal if within the allowed range; otherwise, returns null.

value: The float value.

返回值: The converted decimal value or null when conversion is not possible.

ToRadians

public static double ToRadians(double angle)

result = MathHelper.ToRadians(angle)

Converts an angle in degrees to radians.

angle: The angle in degrees.

返回值: The angle in radians.

Truncate

public static double Truncate(double value)

result = MathHelper.Truncate(value)

Truncates the double by discarding the fractional part.

value: The double value.

返回值: The truncated value.

Truncate

public static decimal Truncate(decimal value)

result = MathHelper.Truncate(value)

Truncates the decimal by discarding the fractional part.

value: The decimal value.

返回值: The truncated value.

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