sign

Find the sign function of a number.

📝Syntaxe

R = sign(M)

📥Arguments d'entrée

Paramètre	Description
M	a variable

📤Arguments de sortie

Paramètre	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).

💡Exemples

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

🔗Voir aussi

🕔Historique des versions

Version	Description
1.0.0	version initiale