Floating point numeric problem
4 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
Qian Feng
il 9 Dic 2016
Commentato: Star Strider
il 17 Dic 2016
I encounter a problem which I cannot understand.
a = 1.228269:0.000001:1.22828;
b = 1.228265:0.000001:1.22828;
ismember(a,b)
>> ismember(a,b)
ans =
1×12 logical array
0 1 0 1 1 1 1 1 1 1 1 1
It is clearly to see that the logical array is not compatible with the values in vectors a and b. An expert has suggested that this has to do with the floating point numerics, do anyone can explain what happened to this example and how to we circumvent it ? Thanks a lot !
0 Commenti
Risposta accettata
Star Strider
il 9 Dic 2016
You can circumvent it using the ismembertol function (in R2015a and later versions).
4 Commenti
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Logical 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!