Error 229- Operands of / and \ operations must not contain NaN of Inf.

I really, really, really don't know what is wrong with this program or to solve it.Line 48.

What is wrong?

Thanks in advance

Scilab 24-03-21, 1:07 a.m. MartimCh
Kindly paste the error message here.
29-12-21, 5:20 p.m. Rashmi

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