Check what values of three variables fulfill a certain condition
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi guys! I'm stuck with a problem where if have to find all the values of x, y and z which fulfill the next equation: x^2+y^2=z^2.
I have tried it in many ways, but I can't get a result.
I don't know if you could help me..
Thank you very much!
x=[1:1:100]; % values of X
y=[1:1:100]; % values of Y
z=[1:1:100]; % values of Z
found=0;
for i=1: length(x)
for k=1:length(y)
for l=1: length(z)
if x.*x+y.*y==z.*z
found=1;
end
end
end
end
if found==1
disp(x,y,z)
end
0 Kommentare
Antworten (1)
Walter Roberson
am 1 Okt. 2022
You do not need to loop over z. Instead, take z = sqrt(x.^2+y.^2) and test to see whether z is an integer.
And... vectorize. For a given x value you can compute for a vector of y values, and use logical indexing to figure out which (if any) entries match.
I have implemented a fully vectorized version that uses no loops at all, and I have implemented a version that uses a single loop; both approaches work fine. I am not posting the code here because you are obviously working on an assignment.
Siehe auch
Kategorien
Mehr zu Logical finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!