# Math Class

**.NET Framework 4**

Provides constants and static methods for trigonometric, logarithmic, and other common mathematical functions.

**Namespace:**System

**Assembly:**mscorlib (in mscorlib.dll)

The Math type exposes the following members.

Name | Description | |
---|---|---|

Abs(Decimal) | Returns the absolute value of a Decimal number. | |

Abs(Double) | Returns the absolute value of a double-precision floating-point number. | |

Abs(Int16) | Returns the absolute value of a 16-bit signed integer. | |

Abs(Int32) | Returns the absolute value of a 32-bit signed integer. | |

Abs(Int64) | Returns the absolute value of a 64-bit signed integer. | |

Abs(SByte) | Returns the absolute value of an 8-bit signed integer. | |

Abs(Single) | Returns the absolute value of a single-precision floating-point number. | |

Acos | Returns the angle whose cosine is the specified number. | |

Asin | Returns the angle whose sine is the specified number. | |

Atan | Returns the angle whose tangent is the specified number. | |

Atan2 | Returns the angle whose tangent is the quotient of two specified numbers. | |

BigMul | Produces the full product of two 32-bit numbers. | |

Ceiling(Decimal) | Returns the smallest integral value that is greater than or equal to the specified decimal number. | |

Ceiling(Double) | Returns the smallest integral value that is greater than or equal to the specified double-precision floating-point number. | |

Cos | Returns the cosine of the specified angle. | |

Cosh | Returns the hyperbolic cosine of the specified angle. | |

DivRem(Int32, Int32, Int32) | Calculates the quotient of two 32-bit signed integers and also returns the remainder in an output parameter. | |

DivRem(Int64, Int64, Int64) | Calculates the quotient of two 64-bit signed integers and also returns the remainder in an output parameter. | |

Exp | Returns e raised to the specified power. | |

Floor(Decimal) | Returns the largest integer less than or equal to the specified decimal number. | |

Floor(Double) | Returns the largest integer less than or equal to the specified double-precision floating-point number. | |

IEEERemainder | Returns the remainder resulting from the division of a specified number by another specified number. | |

Log(Double) | Returns the natural (base e) logarithm of a specified number. | |

Log(Double, Double) | Returns the logarithm of a specified number in a specified base. | |

Log10 | Returns the base 10 logarithm of a specified number. | |

Max(Byte, Byte) | Returns the larger of two 8-bit unsigned integers. | |

Max(Decimal, Decimal) | Returns the larger of two decimal numbers. | |

Max(Double, Double) | Returns the larger of two double-precision floating-point numbers. | |

Max(Int16, Int16) | Returns the larger of two 16-bit signed integers. | |

Max(Int32, Int32) | Returns the larger of two 32-bit signed integers. | |

Max(Int64, Int64) | Returns the larger of two 64-bit signed integers. | |

Max(SByte, SByte) | Returns the larger of two 8-bit signed integers. | |

Max(Single, Single) | Returns the larger of two single-precision floating-point numbers. | |

Max(UInt16, UInt16) | Returns the larger of two 16-bit unsigned integers. | |

Max(UInt32, UInt32) | Returns the larger of two 32-bit unsigned integers. | |

Max(UInt64, UInt64) | Returns the larger of two 64-bit unsigned integers. | |

Min(Byte, Byte) | Returns the smaller of two 8-bit unsigned integers. | |

Min(Decimal, Decimal) | Returns the smaller of two decimal numbers. | |

Min(Double, Double) | Returns the smaller of two double-precision floating-point numbers. | |

Min(Int16, Int16) | Returns the smaller of two 16-bit signed integers. | |

Min(Int32, Int32) | Returns the smaller of two 32-bit signed integers. | |

Min(Int64, Int64) | Returns the smaller of two 64-bit signed integers. | |

Min(SByte, SByte) | Returns the smaller of two 8-bit signed integers. | |

Min(Single, Single) | Returns the smaller of two single-precision floating-point numbers. | |

Min(UInt16, UInt16) | Returns the smaller of two 16-bit unsigned integers. | |

Min(UInt32, UInt32) | Returns the smaller of two 32-bit unsigned integers. | |

Min(UInt64, UInt64) | Returns the smaller of two 64-bit unsigned integers. | |

Pow | Returns a specified number raised to the specified power. | |

Round(Decimal) | Rounds a decimal value to the nearest integral value. | |

Round(Double) | Rounds a double-precision floating-point value to the nearest integral value. | |

Round(Decimal, Int32) | Rounds a decimal value to a specified number of fractional digits. | |

Round(Decimal, MidpointRounding) | Rounds a decimal value to the nearest integer. A parameter specifies how to round the value if it is midway between two other numbers. | |

Round(Double, Int32) | Rounds a double-precision floating-point value to a specified number of fractional digits. | |

Round(Double, MidpointRounding) | Rounds a double-precision floating-point value to the nearest integer. A parameter specifies how to round the value if it is midway between two other numbers. | |

Round(Decimal, Int32, MidpointRounding) | Rounds a decimal value to a specified number of fractional digits. A parameter specifies how to round the value if it is midway between two other numbers. | |

Round(Double, Int32, MidpointRounding) | Rounds a double-precision floating-point value to the specified number of fractional digits. A parameter specifies how to round the value if it is midway between two other numbers. | |

Sign(Decimal) | Returns a value indicating the sign of a decimal number. | |

Sign(Double) | Returns a value indicating the sign of a double-precision floating-point number. | |

Sign(Int16) | Returns a value indicating the sign of a 16-bit signed integer. | |

Sign(Int32) | Returns a value indicating the sign of a 32-bit signed integer. | |

Sign(Int64) | Returns a value indicating the sign of a 64-bit signed integer. | |

Sign(SByte) | Returns a value indicating the sign of an 8-bit signed integer. | |

Sign(Single) | Returns a value indicating the sign of a single-precision floating-point number. | |

Sin | Returns the sine of the specified angle. | |

Sinh | Returns the hyperbolic sine of the specified angle. | |

Sqrt | Returns the square root of a specified number. | |

Tan | Returns the tangent of the specified angle. | |

Tanh | Returns the hyperbolic tangent of the specified angle. | |

Truncate(Decimal) | Calculates the integral part of a specified decimal number. | |

Truncate(Double) | Calculates the integral part of a specified double-precision floating-point number. |

The following example uses several mathematical and trigonometric functions from the Math class to calculate the inner angles of a trapezoid.

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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