How to solve two differential equations in MATLAB and plot it?











up vote
0
down vote

favorite












I have two differential equations: da/dt=a(0.3*a^(−3)+.7)^(1/2) and dτ/dt=1/a. The initial conditions are t=0; a=1 and τ=0, respectively (say).



How can I solve the equations in MATLAB? I need to plot 'a' vs 'τ' from this solution.



Thanks in advance.










share|improve this question













migrated from superuser.com Nov 28 at 13:08


This question came from our site for computer enthusiasts and power users.















  • Possible duplicate of How to solve coupled differential equation in matlab using ode45
    – am304
    Nov 28 at 15:47















up vote
0
down vote

favorite












I have two differential equations: da/dt=a(0.3*a^(−3)+.7)^(1/2) and dτ/dt=1/a. The initial conditions are t=0; a=1 and τ=0, respectively (say).



How can I solve the equations in MATLAB? I need to plot 'a' vs 'τ' from this solution.



Thanks in advance.










share|improve this question













migrated from superuser.com Nov 28 at 13:08


This question came from our site for computer enthusiasts and power users.















  • Possible duplicate of How to solve coupled differential equation in matlab using ode45
    – am304
    Nov 28 at 15:47













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have two differential equations: da/dt=a(0.3*a^(−3)+.7)^(1/2) and dτ/dt=1/a. The initial conditions are t=0; a=1 and τ=0, respectively (say).



How can I solve the equations in MATLAB? I need to plot 'a' vs 'τ' from this solution.



Thanks in advance.










share|improve this question













I have two differential equations: da/dt=a(0.3*a^(−3)+.7)^(1/2) and dτ/dt=1/a. The initial conditions are t=0; a=1 and τ=0, respectively (say).



How can I solve the equations in MATLAB? I need to plot 'a' vs 'τ' from this solution.



Thanks in advance.







matlab






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 28 at 10:35









M Cosmo

1




1




migrated from superuser.com Nov 28 at 13:08


This question came from our site for computer enthusiasts and power users.






migrated from superuser.com Nov 28 at 13:08


This question came from our site for computer enthusiasts and power users.














  • Possible duplicate of How to solve coupled differential equation in matlab using ode45
    – am304
    Nov 28 at 15:47


















  • Possible duplicate of How to solve coupled differential equation in matlab using ode45
    – am304
    Nov 28 at 15:47
















Possible duplicate of How to solve coupled differential equation in matlab using ode45
– am304
Nov 28 at 15:47




Possible duplicate of How to solve coupled differential equation in matlab using ode45
– am304
Nov 28 at 15:47

















active

oldest

votes











Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53520210%2fhow-to-solve-two-differential-equations-in-matlab-and-plot-it%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown






























active

oldest

votes













active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.





Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


Please pay close attention to the following guidance:


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53520210%2fhow-to-solve-two-differential-equations-in-matlab-and-plot-it%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

flock() on closed filehandle LOCK_FILE at /usr/bin/apt-mirror

Mangá

 ⁒  ․,‪⁊‑⁙ ⁖, ⁇‒※‌, †,⁖‗‌⁝    ‾‸⁘,‖⁔⁣,⁂‾
”‑,‥–,‬ ,⁀‹⁋‴⁑ ‒ ,‴⁋”‼ ⁨,‷⁔„ ‰′,‐‚ ‥‡‎“‷⁃⁨⁅⁣,⁔
⁇‘⁔⁡⁏⁌⁡‿‶‏⁨ ⁣⁕⁖⁨⁩⁥‽⁀  ‴‬⁜‟ ⁃‣‧⁕‮ …‍⁨‴ ⁩,⁚⁖‫ ,‵ ⁀,‮⁝‣‣ ⁑  ⁂– ․, ‾‽ ‏⁁“⁗‸ ‾… ‹‡⁌⁎‸‘ ‡⁏⁌‪ ‵⁛ ‎⁨ ―⁦⁤⁄⁕