C Math acosh() Function
Example
Return the inverse hyperbolic cosine of different numbers:
printf("%f", acosh(7));
printf("%f", acosh(56));
printf("%f", acosh(2.45));
Definition and Usage
The acosh() function returns the inverse hyperbolic cosine of a number.
The acosh() function is defined in the <math.h> header file.
Syntax
One of the following:
acosh(double number);Parameter Values
| Parameter | Description |
|---|---|
| number |
Required. A number to find the inverse hyperbolic cosine of. If the value is less than 1, the function returns NaN (Not a Number). |
Technical Details
| Returns: |
A double value representing the inverse hyperbolic cosine of a number.
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