Calculates the error function as defined by the following equation:
$$ \operatorname{erf}(z)=\frac{2}{\sqrt{\pi}} \int_{0}^{z} \exp \left(-t^{2}\right) d t $$
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Syntax |
Description |
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out=erf(z); |
Returns error function of z where z is a scalar number or matrix of scalar numbers. |
Example
Plot the error function from z=-5 to 5.
z=linspace(-5,5,50); # generate vector of numbers from -5 to 5 with 50 points erf_z = erf(z); plot(z,erf_z,"z","erf");
The following figure shows the plot created by the example code.
See Also
List of commands , erfc , erfinv , erfcinv