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You are here: Home / PHP / php tanh – Find Hyperbolic Tangent of Number Using tanh() Function

php tanh – Find Hyperbolic Tangent of Number Using tanh() Function

January 27, 2022 Leave a Comment

To find the hyperbolic tangent of a number, we can use the php tanh() function.

tanh(x)

In php, we can easily use trigonometric functions from the collection of php math functions. These php math functions allow us to perform trigonometry easily and in addition to the standard trigonometry, we have access to the hyperbolic trigonometry functions.

To find the hyperbolic tangent of a number, we can use the php tanh() function.

Below is the php syntax to find the hyperbolic tangent of a number.

tanh(x)

The input to the tanh() function must be a float. The return value will be a number between -1 and 1.

echo tanh(20); // 1.0
echo tanh(0); // 0.0
echo tanh(-10); // -0.9999999958776927

Finding the Inverse Hyperbolic Tangent of a Number in php

With php, we can also find the inverses of the common trigonometric functions. The atanh() function allows us to find the inverse of the hyperbolic tangent of a number.

Below, we show that if we pass a number to tanh() and then call the phpatanh() function, we get back the same number.

echo atanh(tanh(10)) // 10.0

Hopefully, this article has been beneficial for you to understand how to use the math tanh() function in php to find the hyperbolic tangent of a number.

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