return the numerator and denimentor

2 次查看（过去 30 天）
Fatma Alnabrisi
Fatma Alnabrisi 2019-12-9
评论： Fatma Alnabrisi 2019-12-9
Hi everyone
Is there such a way to return the numerator and the denomenator of a given rational number
for example x = 1/2
I want to get n=1 , d=2

请先登录，再回答此问题。

采纳的回答

John D'Errico
John D'Errico 2019-12-9
Rat gives rational results for a floating point number, sometimes they are only approximate, of course.
[n,d] = rat(1/2)
n =
1
d =
2
[n,d] = rat(pi)
n =
355
d =
113

更多回答（1 个）

Matt J
Matt J 2019-12-9
编辑：Matt J 2019-12-9
If x is a symbolic variable, then yes
>> x=sym(1/2);
>> [n,d]=numden(x)
n =
1
d =
2

类别

在 Help Center 和 File Exchange 中查找有关 Interpolation 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by