Alvaro,
Thanks. I will give that a try. I found a couple of typos in my definition of the elements of F. But, I will fix that and try your method.
I got a little further using the solve function; however, I am having trouble getting it to plot.
LITTLE BOY LAMBDA AND ALPHA.sm (63,61 КиБ) скачан 328 раз(а).Thanks again,
Reg