Knowing that the limits of integration of a any function, for example:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\int_{-\infty}^{+\infty}\delta (x)dx=1[/tex]

I know that's correct call your primitive through the limit superior as a variable, so

[tex]H(x)=\int_{-\infty}^{x}\delta (x)dx[/tex]

But, and if I want to describe your primitive through the limit inferior as a variable? Will be so:

[tex]H(x)=\int_{-x}^{+\infty}\delta (x)dx[/tex]

or:

[tex]H(x)=\int_{+x}^{+\infty}\delta (x)dx[/tex]

or other?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Limits of Integration Variable

**Physics Forums | Science Articles, Homework Help, Discussion**