Question Number 127106 by mohammad17 last updated on 26/Dec/20
$$\int_{\mathrm{0}} ^{\:\pi} {e}^{−{x}^{\mathrm{2}} } {dx} \\ $$
Commented by Dwaipayan Shikari last updated on 27/Dec/20
$$\frac{\sqrt{\pi}}{\mathrm{2}}−\frac{{e}^{−\pi^{\mathrm{2}} } }{\mathrm{2}\pi+\frac{\mathrm{1}}{\pi+\frac{\mathrm{2}}{\mathrm{2}\pi+\frac{\mathrm{3}}{\pi+\frac{\mathrm{4}}{....}}}}} \\ $$