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Hi ! I cannot get rid of HoldForm from my expression despite ReleaseHold invokation. Here is the code : [mcode]x3 = (1/(2*r*((-tau)*tau1 + Q*(tau^2 + tau1^2))))*(a*Q*tau1*     HeavisideTheta[      t - t1]*(-2*p0*r*        tau1 + (-2*Q*Sqrt[r]*tau +...
Hi ! I've developed a little function to split an exponential in 2 if its argument is a sum :replace[e_] := e //. Exp[x_ + y_] :> HoldForm[E^x E^y]; Here is the Failing case :[mcode]xx = ReleaseHold[    E^(-(((1 + r) (t - t1))/(2 Q...
Hi ! I try to simplify the content of an exponential argument. This exponential is drowned in a complex expression. If I apply the simplification over the exponential only, it works. In another hand, if the exponential is enclosed in a complex...
Hi ! I define a "triangular" function for t>0 : b = a - c/t1; tst[t_, t1_, a_, c_] = Piecewise[{{0, t -c/b}}] Then I compute Laplace Transform : [mcode]Ltst[s_, t1_, a_, c_] = LaplaceTransform[tst[t, t1, a, c], t, s, Assumptions ->...