# Thread: integrating using spherical coordinates

1. ## integrating using spherical coordinates

How does one integrate $e^{x^2}$ using spherical coordinates?

2. Originally Posted by superdude
How does one integrate $e^{x^2}$ using spherical coordinates?
You need to make a substitution, read this

Spherical coordinate system - Wikipedia, the free encyclopedia

3. I don't understand the question. That is "one dimensional" integral, in a single variable. How do you intend to change it to a three dimensional problem?

There is a method for integrating $\int_{-\infty}^\infty e^{-x^2}dx$ by: Squaring then writing it is the product of two integrals in x and y, then converting to polar coordinates. But that method won't work here because it depends upon the fact that [tex]e^{-x^2}[/math ] goes to 0 at both $\infty$ and $-\infty$.