| MATLAB Function Reference | ![]() |
Y = sign(X)
Y = sign(X) returns an array Y the same size as X, where each element of Y is:
1 if the corresponding element of X is greater than zero
0 if the corresponding element of X equals zero
-1 if the corresponding element of X is less than zero
For nonzero complex X, sign(X) = X./abs(X).
![]() | shrinkfaces | sin | ![]() |
| © 1984-2008- The MathWorks, Inc. - Site Help - Patents - Trademarks - Privacy Policy - Preventing Piracy - RSS |