Perl | atan2() Function
This function is used to calculate arctangent of Y/X in the range -PI to PI.
Syntax: atan2(Y, X)
Parameters:
Y and X which are axis valuesReturns: Function returns arctangent of Y/X in the range -PI to PI.
Example1:
#!/usr/bin/perl # Assigning values to X and y $Y = 45; $X = 70; # Calling atan2() function $return_val = atan2 ( $Y , $X ); # printing the value print "atan2 of 45/70 is : $return_val\n" ; |
Output:
atan2 of 45/70 is : 0.571337479833627
Example2:
#!/usr/bin/perl # Assigning values to X and y $Y = -30; $X = 40; # Calling atan2() function $return_val = atan2 ( $Y , $X ); # printing the value print "atan2 of -30/40 is : $return_val\n" ; |
Output:
atan2 of -30/40 is : -0.643501108793284