MATLAB: How to change Function value intiialization? mine is start with 0. i want start with -1

Question

f = zeros(1,length(t));

Answer 1

The trivial answer is to subtract one from the array of zeros.

Or, replace the zeros with -1. Thus

f(:) = -1;

Or, learn to use the function ones. It works just like zeros. Multiply by -1.

Or, learn to use repmat. Thus repmat(-1,[1,nt]).

Or many other solutions.