sign

Find the sign function of a number.

📝Syntax

R = sign(M)

📥Input Arguments

Parameter	Description
M	a variable

📤Output Arguments

Parameter	Description
R	result of sign.

📄Description

sign find the sign function of a number.

-1 if the corresponding element of M is less than 0.

0 if the corresponding element of M equals 0.

1 if the corresponding element of M is greater than 0.

If input argument is a complex number, sign computes M ./ abs(M).

💡Examples

V = [-1 0 15 NaN Inf];
sign(V)

🔗See Also

🕔Version History

Version	Description
1.0.0	initial version