# Integral of e^-(constant)x^2

1. Nov 16, 2003

### Kristen

Need the integral of e^-(constant)x^2.........don't want to use guass integral trick

2. Nov 16, 2003

### Ambitwistor

3. Nov 17, 2003

### mathman

The indefinite integral cannot be expressed in simple form. Usually it is given in terms of a function called "erf", which is simply a standard form (constant=1/2) integral.