Im using NDSolve. I need to be able to update a variable inside NDSolve each time NDSolve takes a step. "rand" is the variable I want to update each step. I want it to be a different number each step. The below is an example that illustrates what I have currently happening ("rand" does not update for each step).(adsbygoogle = window.adsbygoogle || []).push({});

Instead of picking 1 random variable for "rand" for the entire x domain, I want "rand" to be different for each step i.e. a different "rand" for x=1, x=2, x=3, etc.Code (Text):

rand=RandomReal[]

Solution = y /. Flatten[ NDSolve[{y'[x] == .25 rand, y[0] == 1}, y, {x, -10, 10}]]

Plot[Evaluate[Solution[x]], {x, -10, 10}, PlotRange -> {-1.5, 1.5}]

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# How do you update variables in NDSolve for each step?

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