## A Cot FunctionMath Trig Complex Class

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

### "Inverse Cotangent" or "Arccotangent" Angle whose cotangent is X. Inverse of the Cotangent function.

Examples:
```    ACot(-0.5) = 2.0344439357957
ACot(0) = 1.5707963267949
ACot(0.5) = 1.10714871779409
ACot(1) = 0.785398163397448
ACot(1.5) = 0.588002603547568
ACot(2) = 0.463647609000806
ACot(2.5) = 0.380506377112365
ACot(3) = 0.321750554396642
ACot(3.5) = 0.278299659005111
ACot(10) = 9.96686524911619E-02
ACot("2.3|-4.5") = "9.26493711202965E-02|0.176543708945617"```
See also:
```    Tangent Function
ATan Function
ASec Function
ACsc Function
ATanH Function
Arccotan Function```
vX: Function returns the principal value of the angle whose cotangent (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 Arccotan within their Derived Math Function help topic.

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