Angle Between Vectors

%% Angle Between Vectors
% Uses the dot product to calculate the angle between vectors
a = input('Use brackets to enter the first vector\n');
b = input('Use brackets to enter the second vector\n');

MagA = sqrt(sum(a.^2));
MagB = sqrt(sum(b.^2));

thetad = acosd(dot(a,b)/(MagA*MagB));
thetar = acos(dot(a,b)/(MagA*MagB));
fprintf('The angle between the vectors is %.4f deg and %.4f rad', thetad, thetar);