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# Python math.acosh() Method

### Python math.acosh() Method

Python math.acosh() Method returns the hyperbolic arc cosine value of the given number in radians must be greater than or equal to 1.

Syntax:
`math.acosh(x)`

### Parameter Values

Parameter Description
x It is Required a number to find the hyperbolic arc cosine of and is returns the Type error.
Here is an Example of Python math.acosh() Method:
``````
import math
print (math.acosh(9))
print (math.acosh(47))
print (math.acosh(4.25))
print (math.acosh(1))
```
```
Output:
2.8872709503576206
4.543181589671229
2.1259288074588905
0.0
Example 2:
``````
import math
x = 1
print("math.acosh(",x,"): ", math.acosh(x))
x = 1.9
print("math.acosh(",x,"): ", math.acosh(x))
x = 8
print("math.acosh(",x,"): ", math.acosh(x))
x = 11.27
print("math.acosh(",x,"): ", math.acosh(x))
```
```
Output:
math.acosh( 1 ): 0.0
math.acosh( 1.9 ): 1.2571958266003804
math.acosh( 8 ): 2.7686593833135738
math.acosh( 11.27 ): 3.1133173677228223