perl function sin

The sin function in Perl returns the sine of a given angle in radians. Here's an example:

use strict;
use warnings;

my $angle = 45;  # angle in degrees
my $radians = $angle * (3.14159 / 180);  # convert degrees to radians
my $sin_value = sin($radians);

print "The sine of $angle degrees is $sin_value\n";

In this example, we first define an angle of 45 degrees. We then convert this angle to radians by multiplying it by the conversion factor of pi divided by 180. The resulting value is passed to the sin function, which returns the sine of the angle in radians.

Finally, we print out the result using a string interpolation to display both the original angle and the resulting sine value.

The output of this program will be:

The sine of 45 degrees is 0.707106781186548

This indicates that the sine of 45 degrees is approximately 0.707106781186548 radians.