how to use the compare signal in m-file (>/<)

m-file

Answer 1

[Walter Roberson]

See http://www.mathworks.com/help/techdoc/ref/lt.html and http://www.mathworks.com/help/techdoc/ref/gt.html

If you are comparing vectors or arrays, please be sure to note this behavior of if

An evaluated expression is true when the result is nonempty and contains all nonzero elements (logical or real numeric). Otherwise, the expression is false.

So when you have

if A < B

and A or B is a vector (or a matrix) then the "if" is only considered true if all A < B are true.