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# acosh

Inverse hyperbolic cosine

Y = acosh(X)

## Description

Y = acosh(X) returns the inverse hyperbolic cosine for each element of X.

The acosh function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.

## Examples

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### Graph of Inverse Hyperbolic Cosine Function

Graph the inverse hyperbolic cosine function over the domain .

x = 1:pi/40:pi;
plot(x,acosh(x)), grid on