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Hi, I'm trying to compute the following integral involving derivatives of Heaviside step function, which on integration by parts gives DiracDelta[0] which is undefined or infinite. Integrate[f[x]D[D[HeavisideTheta[x],x],x],{x,0,2}] But...
Hello all, The Wolfram documentation suggests to tackle Delay differential equations ( DDE's ) with NSolve, but I need a symbolic expression of the solution for my current analysis. So, I'm trying to solve using Dsolve. I found a thread ...
(*how to make mathematica recognize x as x^1?? I want f[x]to output {x,1} In[44]:= f[a_^n_] := {a, n}; In[43]:= f[x] Out[43]= f[x] In[45]:= f[x^2] Out[45]= {x, 2}