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paul
05/29/12 09:41am

Hi

I have differential equation

y''[t] +y[t]==DiracDelta[t-Pi]-DiracDelta[t-2Pi]

and

y[t_] :=Sin[t-Pi]HeavisideTheta[-\[Pi]+t] -Sin[t-2Pi]HeavisideTheta[-2\[Pi]+t]+Sin[t]

should be a solution

but

FullSimplify[y''[t] +y[t]==DiracDelta[t-Pi]-DiracDelta[t-2Pi]]

Returns

DiracDelta[\[Pi] - t] -
DiracDelta[-2 \[Pi] + t] == -DiracDelta[-2 \[Pi] + t] +
DiracDelta[-\[Pi] + t]

when I expect

True



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Subject (listing for 'simplify diracdelta')
Author Date Posted
simplify diracdelta paul 05/29/12 09:41am
Re: simplify diracdelta jf 05/29/12 6:31pm
Re: simplify diracdelta Michael 05/31/12 9:10pm
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