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Why do I need to use this.mag, why doesn't mag work?

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Michael
Michael on 2 Jul 2013
It seems that methods of classes always need to be passed the object i.e. the first parameter needs to be this, even if it is not used. The editor complains however if you pass it this and don't use it. Annoying.
Anyway my question is, why do you sometimes need to explicitly call a function/method with this in front of it and other times not.
e.g.
function y=mag(this,x)
y=max(abs(real(x)),abs(imag(x)))+floor(min(abs(real(x)),abs(imag(x)))/4);
end
this.mag(9)
works but
mag(9)
is not recognised as a function
Michael

  1 Comment

Jan
Jan on 2 Jul 2013
@Michael: I've formatted your code to improve th readability.

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