Re: Integrating DiracDelta in Mathematica: how to suppress
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- Subject: [mg128346] Re: Integrating DiracDelta in Mathematica: how to suppress
- From: Alexei Boulbitch <Alexei.Boulbitch at iee.lu>
- Date: Tue, 9 Oct 2012 00:35:47 -0400 (EDT)
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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]
Try this:
Integrate[DiracDelta[p - q2], {p, -Infinity, Infinity},
Assumptions -> {p \[Element] Reals && q2 \[Element] Reals}]
1
Have fun, Alexei
Alexei BOULBITCH, Dr., habil.
IEE S.A.
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