sin - return the sine of a number |
sin - return the sine of a number
sin EXPR
sin
Returns the sine of EXPR (expressed in radians). If EXPR is omitted,
returns sine of $_
.
For the inverse sine operation, you may use the Math::Trig::asin
function, or use this relation:
sub asin { atan2($_[0], sqrt(1 - $_[0] * $_[0])) }
sin - return the sine of a number |