Rounding a decimal down
Mostra commenti meno recenti
With round(x,2) I can round a number to the nearest hundredth, but how do I round down to the nearest hundredth? For example, both 0.143 and 0.147 should become 0.14.
Risposta accettata
Più risposte (2)
x = [0.143 0.147];
floor(x*100)/100
Vilém Frynta
il 2 Dic 2022
Modificato: Vilém Frynta
il 2 Dic 2022
Example:
X = 0.143;
Y = sprintf('%.2f',X);
Y = str2double(Y)
2 Commenti
It is more efficient to keep this in the numeric domain, rather than converting to text and back.
It also does not work, because SPRINTF rounds values to the nearest digit, it does not round down:
X = 0.147;
Y = sprintf('%.2f',X);
Y = str2double(Y) % Nope, definitely not rounded down.
The answers from Matt J and Les Beckham are correct.
Vilém Frynta
il 3 Dic 2022
True, I just reffered to someone else's answer.
Categorie
Scopri di più su Elementary Math in Centro assistenza e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!