math.Atan2() Function in Golang With Examples

Perl | atan2() Function

Last Updated : 25 Jun, 2019

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 values

Returns: 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

math.Atan2() Function in Golang With Examples

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