How to write ||a-p||^2 in matlab code

Hello all,

I have two variables 'a' and 'p Now I want to express this expression as

f=||a-p||^2;

What will be the matlab code for this expression?

[KSSV]

Read about norm

[Soumili Sen]

ok thanks.

Answer 1

[Bjorn Gustavsson]

Have a look at the norm function and its help and documentation. If your a and p are  [n x m] arrays and you want to get ||a-p||^2 for each row you might do something like this:

n_ap = sum((a-p).^2,2);

adapt to handle complex values if necessary.

HTH

[Soumili Sen]

Thank you.