
Re: Integrating DiracDelta in Mathematica: how to suppress
Posted:
Oct 8, 2012 2:51 AM


Look into assumptions. If q2 is in fact real, then you can use the following code:
In: Assuming[Element[q2, Reals], Integrate[DiracDelta[p  q2], {p, Infinity, Infinity}]] Out: 1
Alex
On Sun, 7 Oct 2012, Yaj wrote:
> For the integral shown below, how do I get Mathematica to output only the "correct" answer as 1 (for future steps in the notebook) and i.e. have Mathematica NOT OUTPUT the ConditionalExpresssion that q2 is real etc? > > In[5]:= Integrate[DiracDelta[p  q2], {p, Infinity, Infinity}] > > Out[5]:= ConditionalExpression[1, q2 \[Element] Reals] >

