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# Python cmath.asinh() Method

### Example

Find the hyperbolic arc sine of a complex number:

#import cmath for complex number operations
import cmath

#find the hyperbolic arc sine of a complex number
print (cmath.asinh(2+3j))
Try it Yourself »

## Definition and Usage

The `cmath.asinh()` method returns the inverse hyperbolic sine of a number.

There are mainly two branch cuts:

1. Extending from 1j along the imaginary axis to ∞j towards the right
2.  Extending from -1j along the imaginary axis to -∞j towards left

cmath.asinh(x)

## Parameter Values

Parameter Description
x Required. The number to find the inverse hyperbolic sine of

## Technical Details

Return Value: A `complex` value, representing inverse hyperbolic sine of a complex number 2.6 - Branch cuts are selected according to C99 standard
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