>Hi folks
>
>I have some change to work on Linear Programming, but have not found any example with VFP. There are some open source solver projects like GLPK, but I do not have any idea how to use it in vfp.
>
>Please share you experience and guide me if anyone have used any solver.

Think you won't find any vfp examples

Read the GLPK manual. You will have to declare the necessary API's

From what I remember
(1) Arrays are one-based ( not zero)
(2) To pass an array, declare it as a string by reference ( @s)
Build the string from the array by concatenating the elements

Integer array

s = ''
local i
for i = 1 to alen(aa)
	s = m.s + bintoc(m.aa[m.i], '4rs')
endfor

Array of doubles

s = ''
local i
for i = 1 to alen(aa)
	s = m.s + bintoc(m.aa[m.i], 'B')
endfor

Best thing to do is to write a class that
(1) you use to define the problem
(2) handles the interaction with the API's ( adapter pattern)