Cos Method

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Returns the cosine of the specified angle.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public Shared Function Cos ( _
    a As Double _
) As Double

public static double Cos(
    double a
)

public:
static double Cos(
    double a
)

static member Cos : 
        a:float -> float 

public static function Cos(
    a : double
) : double

Parameters

• a
  Type: System. . :: . .Double
  An angle, measured in radians.

Return Value

Type: System. . :: . .Double
The cosine of a. If a is equal to NaN, NegativeInfinity, or PositiveInfinity, this method returns NaN.

Remarks

The angle, a, must be in radians. Multiply by Math..::..PI/180 to convert degrees to radians.

Acceptable values of a range from approximately -9223372036854775295 to approximately 9223372036854775295. For values outside this range, the Cos method returns a unchanged rather than throwing an exception.

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.

See Also

Reference

Math Class

System Namespace