Toronto Math Forum
APM3462018S => APM346Lectures => Topic started by: Jingxuan Zhang on February 07, 2018, 06:19:32 AM

In a post last year erf was given by
$$\text{erf}_1(z)=\sqrt{\frac{2}{\pi}}\int_0^z e^{s^2/2} \,ds$$
I assume this is not equivalent to our erf, and in fact $\text{erf}(z/\sqrt{2})=\text{erf}_1(z)$. Am I right? How does this difference affect the solution, if any at all?

Yes, the canonical definition is as in the textbook.