sign

Arguments

А

real or complex matrix

X

real or complex matrix

Description

X=sign(A) returns the matrix made of the signs of A(i,j). For complex A, sign(A) = A./abs(A).

Examples

sign(rand(2,3))
sign(1+%i)

See Also

• abs — absolute value, magnitude
• csgn — returns the sign of a vector of real of complex values
• signm — matrix signum function