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- %SIGN Signum function.
- % For each element of X, SIGN(X) returns 1 if the element
- % is greater than zero, 0 if it equals zero and -1 if it is
- % less than zero. For complex X, SIGN(X) = X ./ ABS(X).
-
- % Copyright (c) 1984-93 by The MathWorks, Inc.
- % Built-in function.
-