Generate anonymous functions from vectors

For example, the vector [a b c ....], I want to generate an anonymous function fun=@(t) -(a*t(1)+b*t(2)+c*t(3)+.....) ,How to do it?

Answer 1

[Matt J]

fun=@(t) -( vector(:).' * t(:) )

[Bruno Luong]

If your vector VECTOR and T has the same orientation and are REAL you can also do

fun = @(t) -dot(t,vector);

[Yang Metin]

What does " .' " do?

[Walter Roberson]

.' is transpose -- non-conjugate transpose.

vector(:) re-arranges the vector as a column vector no matter whether it was a row vector or column vector to start with. Transpose of that makes the column vector into a row vector. So vector(:).' is one way of forcing vector to be a row vector. Another way of writing it would be

reshape(vector,1,[])