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Questions on the use of numerical functions NIntegrate and NDSolve.

0
votes
2answers
I'm trying to get a numerical solution for a double integral: n=0.8; f=0.25; g=0.1; a=0.1; q[v_, x_] := n Sinh[v/f]-2(v-g Tanh[x/a]) Cosh[v/f] ; d[v_, x_] := (1/100)*(n Cosh[v/f]-2(v-g Tanh[x/a])Sinh …
asked Jun 29 '16 by jarhead
2
votes
0answers
Consider the following stochastic differential equation Ie = 0.5; a = 0.7; b = 0.8; \[Tau] = 12.5; q[v_, w_] := v - v^3/3 - w + Ie; p[v_, w_] := 1/\[Tau] (v + a - b w); \[Sigma] = 1; sol2 = RandomFu …
asked Nov 19 '18 by jarhead
1
vote
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I'm trying to solve a set of ODEs with a Heaviside step function which depends on the sign of the derivative of the function. This is a simplifying example of what I'm trying to do sol = NDSolve[{ x …
asked Oct 23 '18 by jarhead