# what is The COSH function ?

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#### beingchinmay

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##### what is The COSH function ?
« on: 10-17-2016, 05:13:55 »
The COSH trigonometric function returns the hyperbolic cosine of the specified number. The specification for the COSH function is:

FUNCTION COSH (n NUMBER) RETURN NUMBER;

If n is a real number and i = −1 (the imaginary square root of −1), then the relationship between COS and COSH can be expressed as follows:

COS (i * n) = COSH (h)

#### damponting44

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##### Re: what is The COSH function ?
« Reply #1 on: 09-27-2017, 00:51:43 »
COSH function:
In the C Programming Language, the cosh function returns the hyperbolic cosine of x.
Syntax:
double cosh(double x);
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#### richardmsmith

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##### Re: what is The COSH function ?
« Reply #2 on: 07-16-2018, 04:17:40 »
It is nothing but The mathematical hyperbolic cosine function.
Return the hyperbolic cosine of different numbers:
Example:
SELECT COSH(0)
Output:1.00

#### brookeroberts7

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##### Re: what is The COSH function ?
« Reply #3 on: 08-28-2020, 02:03:34 »
In mathematics, hyperbolic functions are analogs of the ordinary trigonometric functions defined for the hyperbola rather than on the circle: just as the points (cos t, sin t) form a circle with a unit radius, the points (cosh t, sinh t) form the right half of the equilateral hyperbola.
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