I have I really complicated equation, but for simplicity lets assume my function is F(x,y,z)= ax+by+c*z, where a, b and c are some unknown constants.
From experiments we know that at:
x=3, y=2, z=1 then F=10
x=2, y=1, z=0 then F=4
x=1, y=0, z=0 then F=1
So, is there any way to plot F(x,y,z) as contour plot and then fit my data above in order to extract the exact unknown coefficient?
By the way the example answer is a=1, b=2 and c=3.