AixLib.Utilities.Math.Functions.BaseClasses.der_2_regNonZeroPower

# .AixLib.Utilities.Math.Functions.BaseClasses.der_2_regNonZeroPower

Power function, regularized near zero, but nonzero value for x=0

## Information

Implementation of the second derivative of the function AixLib.Utilities.Math.Functions.regNonZeroPower.

#### Interface

>     function der_2_regNonZeroPower
>       extends Modelica.Icons.Function;
>       input Real x "Abscissa value";
>       input Real n "Exponent";
>       input Real delta = 0.01 "Abscissa value where transition occurs";
>       input Real der_x;
>       input Real der_2_x;
>       output Real der_2_y "Function value";
>     end der_2_regNonZeroPower;

## Revisions

- August 17, 2015 by Michael Wetter:
  Corrected wrong derivative implementation which omitted the `der_x` term. This is for issue 303.
- April 9, 2009, by Michael Wetter:
  First implementation.

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