Matlab 2020b "Invalid text character. Check for unsupported symbol, invisible character, or pasting of non-ASCII characters."

Hi

i'm working on a university project and i'm doing image processing.

So when i researching on google for my project content, i found some codes and tried but matlab gives an error.

I know error type but i can not found any argumant for this, because i'm new on matlab

Anybody can halp me and gives me advice how can i found updatings for matlab 2020b

Error: Invalid text character. Check for unsupported symbol, invisible character, or pasting of non-ASCII characters.

Code line: Sn = abs(fft2(noise)).ˆ2;

"^" i think ,this symbol is not useable for matlab 2020b but what symbol is substitute the this symbol for matlab 2020b

[Stephen23]

Sn = abs(fft2(noise)).ˆ2;
%                     ^ invalid character (U+02C6, MODIFIER LETTER CIRCUMFLEX ACCENT)
Sn = abs(fft2(noise)).^2;
%                     ^ valid character: (U+005E, CIRCUMFLEX ACCENT) from ASCII

Answer 1

[Bjorn Gustavsson]

It might well be that the "ˆ" symbol have been encoded to some othe character than "^" (I'm completely un-interested in character-sets and the like (as long as I get to use ö and Å in my name and for the length-unit respectivel)). So just try to change whatever the "ˆ" is to the "^" character from your keyboard.

HTH