Hi everybody,

I join you because I need help

I want to solve three equations with three unknown values (x,y,,z) and the known constants are (a,b,c,d,e,f,g,h,i) but I would like to be able to change them easily without having to recalculate !!

The equations are from the type:

a=x*b + (((c+d)^2)/((c/(y/e)+d/(z/f))

g=y*c + (((b+d)^2)/((b/(x/h)+d/(z/f))

i=z*d + (((b+c)^2)/((b/(x/h)+c/(y/e))

I can of course simplify this equations by implementing all the known values but I would like to be able to vary these values! Some may have recognize these equations, they are for the thermal conductivity of composites with fibers in three orthotropic directions! I have values for several materials, some several constants and for each material, I want to find out x,y and z!

So, I would like to find a free software where I can put the full form of my equations and input the constants seperately!

Do you have any clue of where I can find such an "easy" software

Please help me

Regards

Jeremie who is not able to create a software for this