MathGroup Archive 2007

[Date Index] [Thread Index] [Author Index]

Search the Archive

a problem about NDSolve and NIntegrate


Hello,

I'm tring to solve a diffrential equation with

its upper boundary as a variable.

and then I want to integrate it, and define

it as a funcion with two variable.

However, I don't know why it doesn't work at the second step.


my equation is as following,

f[c_?NumberQ]:=y[x]/.NDSolve[{eqn,y[0]==1,y'[0]==0},y,{x,0,c},MaxSteps-
>10000][[1]]

n[w_NumberQ,c_NumberQ]:=NIntegrate[c*y[x]*(r-w)],{r,w,1}]

function f works well, however there's some problem in funcion n,

and it's confused me for a long time...,

thanks for your help!!

Best Regards!!
Lynn



  • Prev by Date: Re: why DateListPlot is so slow?
  • Next by Date: Re: Progess bar in Mathematica
  • Previous by thread: Re: Lattice operations
  • Next by thread: Re: a problem about NDSolve and NIntegrate