Perl | cos() Function

Last Updated : 25 Jun, 2019
This function is used to calculate cosine of a VALUE or $_ if VALUE is omitted. The VALUE should be expressed in radians.
Syntax: cos(VALUE) Parameters: VALUE in the form of radians Returns: Function returns cosine of VALUE.
Example 1: Perl 
#!/usr/bin/perl

# Calling cos function
$var = cos(5);

# Printing value of cos(5)
print "cos value of 5 is $var";
Output: 
cos value of 5 is 0.283662185463226
Example 2: Perl 
#!/usr/bin/perl

# Calling cos function
$var = cos(9);

# Printing value of cos(9)
print "cos value of 9 is $var";
Output: 
cos value of 9 is -0.911130261884677
Comment
Article Tags:
Perl
Perl-function
Perl-Math-Functions

Explore