Creating a script that finds all triple of the Pythagorean theorem.

35 次查看（过去 30 天）
Alec Baird
Alec Baird 2016-3-17
编辑： Stephen23 2018-1-3
I'm new to Matlab, and completely stuck on this one. I'm supposed to generate a script that finds all combinations of the Pythagorean triples with integers <= 50. I got most of the way there, but I can't figure out out to get rid of the repeating numbers. Here's what I have.
n=1;
for a_ = 1:50
for b_ = 1:50
c_=sqrt(a_^2+b_^2);
if c_==round(c_)
if c_<=50
a(n)=a_;
b(n)=b_;
c(n)=c_;
n=n+1;
end
end
clear c_
end
end
Pyth=[a',b',c'];
disp(Pyth)

请先登录，再回答此问题。

采纳的回答

John BG
John BG 2016-3-17
编辑：Jan 2017-12-27
Alec
use the very useful function combinator, available from MATLAB CENTRAL, i copy it here at the end of my answer.
Pytha_triple=uint64(combinator(50,3,'p','r'))
=
1 1 1
1 1 2
1 1 3
1 1 4
1 1 5
...
50 50 45
50 50 46
50 50 47
50 50 48
50 50 49
50 50 50
If you find this answer of any help solving your question, please click on the thumbs-up vote link,
thanks in advance
John
jgb2012@sky.com
  2 个评论
Jos (10584)
Jos (10584) 2017-11-28
This merely shows the combinations of three integers from 1 to 50, not only Pythagorean integer triplets,like [3 4 5].
John D'Errico
John D'Errico 2017-12-27
A bit of a travesty to have an accepted answer on a question where nothing useful was provided.

请先登录，再进行评论。

更多回答（1 个）

Jos (10584)
Jos (10584) 2017-11-28
ab = nchoosek(1:50,2) ; % all unique combinations of values
c = sqrt(sum(ab.^2,2)) ; % hypothenuse
tf = c == fix(c) & c <= 50 ; % check for integer and limits
PythgoreanIntegerTriplets = [ab(tf,:) c(tf)]

类别

在 Help Center 和 File Exchange 中查找有关 Fixed-Point Designer 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