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Lines 714-726
Computes the error function:
Link Here
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| 714 |
@tex |
714 |
@tex |
| 715 |
$$ {\rm erf}(x) = {2\over\sqrt\pi}\int_{0}^{x} e^{-t^2} dt $$ |
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$$ {\rm erf}(x) = {2\over\sqrt\pi}\int_{0}^{x} e^{-t^2} dt $$ |
| 716 |
@end tex |
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@end tex |
| 717 |
@html |
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| 718 |
@erf(x) = 2/sqrt(Pi) * integral(exp(-t^2), t=0..x) |
| 719 |
@end html |
| 720 |
@ifnottex |
717 |
@ifnottex |
| 721 |
@ifnothtml |
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| 722 |
@math{@r{erf}(x) = 2/@r{sqrt}(Pi) * @r{integral}(@r{exp}(-t^2), t=0..x)} |
718 |
@math{@r{erf}(x) = 2/@r{sqrt}(Pi) * @r{integral}(@r{exp}(-t^2), t=0..x)} |
| 723 |
@end ifnothtml |
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| 724 |
@end ifnottex |
719 |
@end ifnottex |
| 725 |
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720 |
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| 726 |
Note that for large values of the parameter, calculating can result in |
721 |
Note that for large values of the parameter, calculating can result in |