??? Subscript indices must either be real positive integers or logicals.

What should I do if this error message pops up?

 ??? Subscript indices must either be real positive integers or logicals.

[Jan]

Did you search in this forum for this error message already? It is answered such frequently, that finding a solution should be possible.

Answer 1

[Azzi Abdelmalek]

In the fellowing expression you missed * x0*(z, instead of x0(z

c1=(v0+x0*(z*n+n*sqrt(z.^2-1)))/(2*n*sqrt(z.^2-1));

You have also, to replace some multiplication by multiplication element/element

[Azzi Abdelmalek]

Check the 3 lines after the previous line and replace * by .*

[Jan]

??? Did the OP remove essential information from the question?

[Azzi Abdelmalek]

Yes, all the code is removed