Vector normalization giving error in second iteration

In first iteration, there was no issue, but in second iteration, the program stopped running giving error " Subscript indices must either be real positive integers or logicals" .

See line 62

Matlab command

s1=s1/norm(s1)

Answer 1

[Jan]

You have redefined "norm" as a variable in:

norm = 1./eta;

Afterwards you cannot access the function norm() directly anymore. The solution is easy: Do not shadow built-in functiony by variables, but choose a different name for teh variable.

By the way: you can find the reason of such problems easily using the debugger. Type this in the command window:

dbstop if error

and run your code again. When Matlab stops at the problem, check the used expressions:

which norm -all    % <- this will reveal the problem
size(s1)           % <- might be useful in other cases
class(s1)
s1

[Sania Gul]

thank u thank u thank u. I highly acknowledge ur support