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

php atanh – Find Hyperbolic Arctangent of Number Using atanh() Function

January 27, 2022 Leave a Comment

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

atanh(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 arctangent of a number, we can use the php atanh() function.

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

atanh(x)

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

echo atanh(0.5); // 0.5493061443340549
echo atanh(0); // 0.0
echo atanh(-0.75); // -0.9729550745276566

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 php atanh() function, we get back the same number.

echo atanh(tanh(100)) // 100.0

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

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