- #1
jackmell
- 1,807
- 54
Hi,
I'd like to solve a DE, create a function with the solution, then use that solution in a Piecewise function, and then NIntegrate the Piecewise function but I can't get NIntegate to work. Here's what I'm trying to do:
NIntegrate then tells me it's not numeric in the interval.
Can someone explain to me what I'm doing wrong?
Thanks,
Jack
I'd like to solve a DE, create a function with the solution, then use that solution in a Piecewise function, and then NIntegrate the Piecewise function but I can't get NIntegate to work. Here's what I'm trying to do:
Code:
mysol = NDSolve[{y'[x] == x, y[0] == 1}, y, {x, 0, 1}]
myy[x_] := Evaluate[y[x] /. mysol];
myf[x_] := Piecewise[{{myy[x], 0 < x <= 1}, {x^2, x > 1}}];
NIntegrate[myf[x], {x, 0, 2}]
NIntegrate then tells me it's not numeric in the interval.
Can someone explain to me what I'm doing wrong?
Thanks,
Jack