How to get the same number of char as number of decimals using num2str?
7 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Louis Tomczyk
il 16 Set 2022
Commentato: Louis Tomczyk
il 17 Set 2022
Dear all,
I want to get the decimal part of a number.
I have written this small function:
function dec = get_decimals(input)
str = num2str(input) % convert to string
index = strfind(str,'.'); % locate the comma/point
dec = str2double(str(index+1:end)); % take the end
end
However if my input has too many decimals, the function will truncate my number:
>> dec = get_decimals(3.141592653)
str =
'3.1416'
decimals =
1416
How to solve it?
Thanks in advance.
Best,
louis
0 Commenti
Risposta accettata
Più risposte (1)
James Tursa
il 16 Set 2022
You might look into using the fix( ) function to isolate the fractional part of your number and then work with that directly.
7 Commenti
James Tursa
il 16 Set 2022
Modificato: James Tursa
il 16 Set 2022
@Louis Tomczyk As you have just learned, it is best to post your real problem up front so as to avoid answers that don't really help you. In addition to Bruno's latest comment, here are other methods for determining if a finite number is an integer value:
x==fix(x)
x==floor(x)
x==round(x)
Vedere anche
Categorie
Scopri di più su Loops and Conditional Statements in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!