sign
Perform signum function on array
Syntax
c = sign(a)
Description
c = sign(a)returns an arraycthe same size asa, where each element ofcis
1if the corresponding element ofais greater than zero0if the corresponding element ofais zero-1if the corresponding element ofais less than zero
The elements ofcare of data typeint8.
signdoes not support complexfiinputs.
Extended Capabilities
Introduced before R2006a
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