asin

Computes the inverse sine of numeric types.

Prototype

	function asin (
		value  : numeric   
	)

	return_val [dimsizes(value)] :  float or double

Arguments

One or more values of any dimension -1.0 &le value &le 1.0

Return value

Returns an array dimensioned the same as value, in radians. The return type is double if the input is double, and float otherwise.

Description

This function returns the inverse sine of each element of value, in radians. The return array is dimensioned the same as value. Missing values are ignored.

See Also

acos, atan, atan2

Examples

Example 1

  f = 0.5
  asin_f = asin(f)
  print(asin_f)        ; Should be 0.5235988

Errors

If value is not -1.0 &le value &le 1.0, nan is returned.