MATLAB Answers

0

why doesn't the function sigshift work when i use it for x(n) = 2x(n - 5) - 3x (n + 4).

Asked by Blasphemy on 30 Jan 2015
Latest activity Edited by dato datuashvili on 2 Feb 2015
n = -2:10; x = [1:7,6:-1:1]; [x11,n11] = sigshift(r,n,5); [x12,n12] = sigshift(x,n,-4); [xl,nl] = sigadd(2*x11,n11,-3*x12,n12); stem(n1,x1); grid;
it shows: Undefined function 'sigshift' for input arguments of type 'double'.

  0 Comments

Sign in to comment.

2 Answers

Answer by Niels
on 30 Jan 2015

Your function sigshift seems not to be a built-in function. Are you sure the function/directory it is located in is included in your work path?

  0 Comments

Sign in to comment.


Answer by dato datuashvili on 2 Feb 2015
Edited by dato datuashvili on 2 Feb 2015

locate this code in the same directory
function [y,n] = sigshift(x,m,n0)
% implements y(n) = x(n-n0)
% -------------------------
% [y,n] = sigshift(x,m,n0)
%
n = m+n0; y = x;
in other word create script with name same as sigshift and locate this script in the same directory where variables are declared

  0 Comments

Sign in to comment.