DoubleDoubleCos Method

public static DoubleDouble Cos(
	DoubleDouble x
)

Public Shared Function Cos ( 
	x As DoubleDouble
) As DoubleDouble

public:
static DoubleDouble Cos(
	DoubleDouble x
)

static member Cos : 
        x : DoubleDouble -> DoubleDouble 

Parameters

x  DoubleDouble

The argument of the cosine.

Return Value

Unlike Cos(Double), this function does not currenly do range reduction with a value of pi even more accurate than Pi. Therefore, beyond the first few periods, results can slowly loose accuracy, particularly near zeros, at the rate of about one digit per order of magnitude of the argument.

Reference