function [mag] = vecmag(x,y,z)
%% Tiny function to find the mag of 2 or 3 vectors
% Because I'm tired of writing sqrt
% Alexander Rey, Queen's University, Oct 30 2019


if nargin == 1
mag = x;
elseif nargin == 2
mag = sqrt(x.^2+y.^2);
elseif nargin == 3
mag = sqrt(x.^2+y.^2+z.^2);
end
end