MATLAB - Vector Dot Product

Dot product of two vectors a = (a1, a2, , an) and b = (b1, b2, , bn) is given by −

a.b = ∑(ai.bi)

Dot product of two vectors a and b is calculated using the dot function.

dot(a, b);

Example

Create a script file with the following code −

v1 = [2 3 4];
v2 = [1 2 3];
dp = dot(v1, v2);
disp('Dot Product:'); 
disp(dp);

When you run the file, it displays the following result −

Dot Product:
   20