Perl AI Deep Learning Tutorial

tanh function --activation function

Let's write the tanh function in Perl. The tanh function is one of the activation functions.

The tanh function is one of the trigonometric functions. Math::Trig Defined as a function of the module.

use strict;
use warnings;

# Import tanh function
use Math::Trig'tanh';

my $tanh = tanh 3;

# 0.995054753686731
print "$tanh\n";

Derivative of tanh function

Please refer to the following for the derivative of the tanh function.

• Derivative of the tanh function