In the attached sm file, I am trying to find the roots, alpha, to a complex set of equations. To get the answer, I have to use the index 2 as noted. An image of the important part of the calculation is shown in this image.



Also, I cannot get any other root finding functions to work. I have added the maxima plugin, but that fails also. If there is a function not requiring the index that works, I would appreciate the help.

ALPHA LAMBDA WORKING.sm (99,81 KiB) scaricato 1651 volta(e).

Thanks,
Reg

The solve function finds two solutions for each combination of Rexp, RTexp etc., the first of which is always zero. Presumably you want the non-zero solution which is the second one found, hence the subscript 2.

You could also use the four-parameter version of solve; for example: solve(F(a),a,0.001,1) which will find solutions betwee 0.001 and 1.

Thank you.👍