log2

dissect floating-point numbers into base 2 exponent and mantissa.

📝Syntaxe

R = log2(M)
[F, E] = log2(M)

📥Arguments d'entrée

Paramètre	Description
M	a variable: a matrix

📤Arguments de sortie

Paramètre	Description
R	result of log2: computes the base 2 logarithm of the elements of X.
F	Mantissa values that satisfy this equation: M= F.*2.^E
E	Exponent values that satisfy this equation: M= F.*2.^E

📄Description

log2 dissects several numbers into the exponent and mantissa.

[F, E] = log2(M), any zeros in M produce F = 0 and E = 0.

Input values of Inf, -Inf, or NaN are returned unchanged in F with a corresponding exponent of E = 0.

💡Exemples

x = [1+i,-i;i,2i];
R = log2(x)
[F, E] = log2(x)

🔗Voir aussi

Used Functions

std::frexp and std::logb C++ functions

🕔Historique des versions

Version	Description
1.0.0	version initiale