- #1
blenx
- 30
- 0
It is easy to integrate the delta function of real variable. But when the argument of the delta function is complex, I get stuck. For example, how to calculate the integral below, where u is a complex constant:
[tex]
\int_{ - \infty }^{ + \infty } {f\left( x \right)\delta \left( {ux} \right){\text{d}}x} = ?
[/tex]
[tex]
\int_{ - \infty }^{ + \infty } {f\left( x \right)\delta \left( {ux} \right){\text{d}}x} = ?
[/tex]