asinh
Inverse hyperbolic sine.
y=asinh(x)
Inputs
x An array of real or complex numbers.
Outputs
y An array of same size as x. Each element of the output is the inverse hyperbolic sine of the corresponding element of the input.


Example
>>a=complexRandn(2,3)
>>s=sinh(a)
>>as=asinh(s)
>>a
       0.8143 -     0.6999i         -0.1649 +     0.5371i          0.8645 +     1.8268i   
       0.7862 +     0.8334i          0.1999 -     0.0755i         -0.3509 +     1.8592i   

>>as
       0.8143 -     0.6999i         -0.1649 +     0.5371i         -0.8645 +     1.3148i   
       0.7862 +     0.8334i          0.1999 -     0.0755i          0.3509 +     1.2824i   

>>norm(sinh(a)-sinh(as))
       1.0686e-015