What Is the Meaning of This Syntax?

What is the meaning of this syntax:

.'*

for example:

A = [1 4 2 5 6;
     2 3 4 5 6];
W = [2;
     3];

B = W.'*A

Answer 1

[Matt J]

W.' is the tranpose of W, so the whole thing, B=W.'*A, means multiply the transpose of W with A.