+ inverse erfc

Author: tk-yoshimura

README.md

@@ -116,11 +116,16 @@ A(z) taylor series (z0=3.5)
 larger 27.25:  
 ![erfc tolarge](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/figures/erfc_approx_tolarge.svg)
 
-### Pade Approximant
+### Pade Approximant Base
 ![pade definition](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/figures/pade_definition.svg)  
 [C# code](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/ErrorFunctionApproximation/ErrorFunctionMarkII.cs)  
 
+[pade erf precision16](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/results/pade_erf_e16.txt)  
+[pade erf precision32](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/results/pade_erf_e32.txt)  
 [pade erfc precision16](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/results/pade_erfc_e16.txt)  
 [pade erfc precision32](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/results/pade_erfc_e32.txt)  
-[pade erf precision16](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/results/pade_erf_e16.txt)  
-[pade erf precision32](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/results/pade_erf_e32.txt)  
+
+## Inverse Function
+
+### Erfc NearZero
+![inverse erfc nearzero](https://github.com/tk-yoshimura/ErrorFunctionApproximation/blob/main/figures/inverse_erfc_nz.svg)