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| sign | See Also |
Syntax
Y = sign(X)
Description
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
X, sign(X) = X./abs(X).
See Also
abs, conj, imag, real