% Problem 1
clc; clear all;
%1.1
OA = [3, 4, 5];
OB = [2, 6, 9];
OA_dot_OB = dot(OA,OB)
% OA_dot_OB = 75  (A)

%1.2
Mag_OA = sqrt((OA(1))^2+(OA(2))^2+(OA(3))^2);
Mag_OB = sqrt((OB(1))^2+(OB(2))^2+(OB(3))^2);
Angle = acos((OA_dot_OB)/(Mag_OA*Mag_OB))
% Angle = 0.2682  (B)

OA_dot_OB =

    75


Angle =

   0.268248794796395

Published with MATLAB® 7.4