# Error function (chart) Calculator

## Calculates a table of the error functions erf(x) and complementary error function erfc(x) and draws the chart.

 initial value x real number [ increment repetition ]
 $\normal Error\ function\ erf(x)\ and\\\ complementary\ error\ function\ erfc(x)\\[10](1)\ erf(x)={\large\frac{2}{\sqrt\pi}}{\large\int_{\small 0}^ {\hspace{25}\small x}}e^{-t^2}dt\\\hspace{25}erfc(x)={\large\frac{2}{\sqrt\pi}}{\large\int_{\small x}^ {\hspace{25}\small\infty}}e^{-t^2}dt\\[10](2)\ erf(x)+erfc(x)=1\\$
Error function (chart)
 [1-8] /8 Disp-Num5103050100200
[1]  2013/10/16 00:40   Male / 20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
Generate an error function table to be used in an excel spreadsheed v-lookup function in modelling a heat transfer problem.
Comment/Request
Thank you, this was very helpful!
[2]  2012/09/12 04:26   - / 50 years old level / A teacher / A researcher / Very /
Purpose of use
Diffusion equation for non-steady state application
[3]  2012/02/16 16:14   Female / 20 years old level / A student / A little /
Purpose of use
accurate erfc values
[4]  2012/02/16 15:34   Female / 20 years old level / A student / A little /
Purpose of use
microfabrication purposes
[5]  2011/10/21 03:55   Male / 20 years old level / A student / Very /
Purpose of use
homework
Comment/Request
Finally found the number i need.Awesome
[6]  2011/10/19 15:50   - / 50 years old level / An office worker / A public employee / Very /
Purpose of use
Checking output of FP library and determining cut-off point
Comment/Request
[7]  2010/06/07 04:22   Male / 20 level / A specialized student / Very /
Purpose of use
home work, exam
Comment/Request
a nice site.
[8]  2009/03/29 23:08   Female / 20 level / A university student / Very /
Purpose of use
to get acurate error function answers for design purposses
Comment/Request
very efficient and useful, put it in favorites

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