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Student Support Forum: 'Cable Equation w DSolve' topicStudent Support Forum > General > "Cable Equation w DSolve"

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adamimos
09/21/10 1:27pm

Hi all. I am trying to get Mathematica to solve a partial diffy q that looks like this:

V is a function of x and t V=V(x,t).

d^2V/dx^2 - V - dV/dt = delta(x)delta(t)

where delta is the dirac delta function (DiracDelta[x])

this is what i input:

DSolve[ D[V[x, t], {x, 2}] == D[V[x, t], t] +
V[x, t]+DiracDelta[x] DiracDelta[t], V[x, t], {x, t}]

and I get no answer. does anyone have any suggestions?

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