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Re: Convolve: Different Looking Results. (2)

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  • Subject: [mg130636] Re: Convolve: Different Looking Results. (2)
  • From: Clif McInnis <c_mcinnis at hotmail.com>
  • Date: Sun, 28 Apr 2013 00:58:59 -0400 (EDT)
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  • References: <klffem$jkn$1@smc.vnet.net>

Here are my results using Mathematica 9.0.1

In[22]:= Convolve[Exp[-x] UnitStep[x], Sin[2 x] UnitStep[x], x, y, 
 Assumptions -> y > 0]

Out[22]= -(2/5) (Cos[2 y] - Cosh[y] - Cos[y] Sin[y] + Sinh[y])

In[23]:= Convolve[Exp[-x] UnitStep[x], Sin[2 x] UnitStep[x], x, t, 
 Assumptions -> t > 0]

Out[23]= 1/5 (2 E^-t - 2 Cos[2 t] + Sin[2 t])



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