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AKASH BAJWA

This ** COSH() function** returns the hyperbolic cosine of a number. It accepts an angle

`β`

in radian measure, but it should be a number.Figure 1 shows the mathematical representation of the hyperbolic cosine method.

Figure 2 represents the graphical behavior of `COSH()`

function between -3 and +3 intervals.

Figure 1 : Mathematical Representation of COSH(θ)

Figure#2 Graphical Illustration of COSH(β)

```
COSH(β) -- β is an angle measured in radians.
```

To convert degrees to radians, use this formula:

Radian angle= $\frac{x\pi}{180}$, where $\pi$ = 3.14 and $x$ is the degree angle.

This `COSH()`

method requires a floating-point number as an argument.

Usually, this double-precision floating-point number takes 64-bits of computer memory.

The `COSH()`

function returns the hyperbolic cosine of the value that is sent as an argument.

- Passing
`NULL`

as a parameter to`COSH()`

function, the function returns`NULL`

. - Passing
`0`

as a parameter to`COSH()`

function, the function returns`1.0`

.

-- Example showing how to use COSH(β) /*Positive number*/ SELECT COSH(4); -- return 27.308232836016 /*Negative number*/ select COSH(-1); -- return 1.543080634815 /*Fractional number*/ select COSH(0.8); -- return 1.337434946305

RELATED TAGS

sql

hyperbolic cosine

cosh

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