ok,

if the function f(B,F)= 

where B and F are real positive values. 

N=

I need to plot the surface f as a contourplot when f=0 and f<0

I need the output as table for the solutions

i t[t] u1[i]

i think the best way is  to write the table with fprintf and read it in exel for exaple, but i dont know the directory format for fopen..

thanx

Thaks for ur reply

the question now I want to plot this output( range) multiply by f(d)

but i cant do multiply range by somthing

what shall i do?

Thaks for ur reply

the question now I want to plot this output( range) multiply by f(d)

but i cant do multiply range by somthing

what shall i do?