compare two vectors/compare coordinates

Hello,

lets assume I have one point with coordinates X1Y1=[1 1] and another point X2Y2=[1 1]. What is the shortest and possibly fastest way to compare them for equality/inequality (i.e. to compare if the two 2D points are equal)?

More general, I have two vectors a=[1 2 3 4 5 6 7] and b=[1 2 3 4 5 6 8]. How to compare the vectors of arbitrarily large length for equality in a fast an short way?

Is there any special function for this or they use something like

if sum(a-b)==0

Answer 1

[Mischa Kim]

Ilya, use isequal(a,b).

[Ilya]

Wow, thanks!!