How Graph differential equations with Matlab
247 ビュー (過去 30 日間)
古いコメントを表示
Looking to get some help on how to use matlab to solve the following equation problem 1, all help is appreciated! Thank You! I haven't used matlab in 2 years very rusty, image is reference to original problem statement. List of equations
%%PROBLEM 1
syms y(x)
ode = y*diff(y,x)+36*x == 0;
ySol(x) = dsolve(ode)
ezplot(y(x))
採用された回答
Star Strider
2018 年 1 月 17 日
The integrated equations produce results that are pure imaginary. You have to plot the real and imaginary parts of each solution separately with ezplot. You also have to define the initial condition, y(0).
Try this:
syms y(x)
ode = y*diff(y,x)+36*x == 0;
ySol = dsolve(ode, y(0) == 0)
figure
subplot(2,1,1)
ezplot(real(ySol(1)))
subplot(2,1,2)
ezplot(imag(ySol(1)))
figure
subplot(2,1,1)
ezplot(real(ySol(2)))
subplot(2,1,2)
ezplot(imag(ySol(2)))
3 件のコメント
その他の回答 (1 件)
Ritesh
2023 年 12 月 22 日
syms y(x) ode = y*diff(y,x)+36*x == 0; ySol = dsolve(ode, y(0) == 0) figure subplot(2,1,1) ezplot(real(ySol(1))) subplot(2,1,2) ezplot(imag(ySol(1))) figure subplot(2,1,1) ezplot(real(ySol(2))) subplot(2,1,2) ezplot(imag(ySol(2)))
1 件のコメント
Dyuman Joshi
2023 年 12 月 22 日
編集済み: Dyuman Joshi
2023 年 12 月 22 日
This non-formatted code is copy-pasted from Star Strider's (accepted) answer.
If you want to give an answer, I recommend you provide an original one. This blatantly copied answer will be deleted soon.
And if you had researched a bit to give an original answer, you would have found out the using ezplot is not recommended.
参考
カテゴリ
Help Center および File Exchange で Interactive Control and Callbacks についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!