## A Sin H FunctionMath Trig Complex Class

```Public Function ASinH( _
ByVal vX As Variant _
) As Variant```

### "Inverse Hyperbolic Sine" Angle whose hyperbolic sine is X. Inverse of the SinH function.

Examples:
```    ASinH(-10) = -2.99822295029798
ASinH(-2) = -1.44363547517881
ASinH(-1) = -0.881373587019543
ASinH(0) = 0
ASinH(1) = 0.881373587019543
ASinH(2) = 1.44363547517881
ASinH(10) = 2.99822295029797
ASinH("2.3|-4.5") = "2.3075846192625|-1.09022846498264"```
```    ASin Function
SinH Function
ACosH Function
ATanH Function
HArcsin Function```
vX: Function returns the principal value of the angle whose hyperbolic sine (expressed in radians) is vX. Function returns Null if vX is Null or cannot be fixed up to a real or complex number (as defined by the ComplexStringToReals function). Complex numbers are represented within strings as "R|I" where R is the real part and I is the imaginary part.
Note: Microsoft named this function HArcsin within their Derived Math Function help topic.

Definition:

`    Logarithm(Sqrt(X^2 + 1) + X)`