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| erf func http://forum.alglib.net/viewtopic.php?f=2&t=3754 |
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| Author: | MC2 [ Thu Jun 09, 2016 7:51 am ] |
| Post subject: | erf func |
Hello! I'm trying to use function "errorfunction". when i use it like for calc probability integral like errorfunciton(i/sqrt(2)), i have values as probability integral 2/sqrt(2pi)*integral]0..x[(exp(-x^2/2). But in your description i see 2/sqrt(pi)*integral]0..x[(exp(-x^2). Where is error: you have foggoten 2 under square root, or tables are wrong? Thank you. |
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