Perl Programming/Keywords/sin
< Perl Programming | Keywords
The sin keyword[edit | edit source]
sin is the trigonometric function sine that assumes that X is in radians.
Syntax[edit | edit source]
sin(X)
Examples[edit | edit source]
The code
prints the sine of the angle of 30 degrees:
*PI = \3.1415926535;
$a = 30; # in degrees
$sin = sin($a/180*$PI);
print "sin(" . $a . "°) = " . $sin . "\n";