How can i converge my leapfrog code
-1
$begingroup$
in leapfrog method i should compute this discretization equation
$$frac{u_i^{n+1}-u_i^{n-1}}{2∆t}=-cfrac{u_{i+1}^n-u_{i-1}^n}{2∆x}$$
my major problem is that how can I compute the $u_i^{n-1}$ term ???
thanks a lot
pde finite-difference-methods
asked Jan 10 at 6:21
Amin DppAmin Dpp
12
$endgroup$
add a comment |
-1
$begingroup$
in leapfrog method i should compute this discretization equation
$$frac{u_i^{n+1}-u_i^{n-1}}{2∆t}=-cfrac{u_{i+1}^n-u_{i-1}^n}{2∆x}$$
my major problem is that how can I compute the $u_i^{n-1}$ term ???
thanks a lot
pde finite-difference-methods
asked Jan 10 at 6:21
Amin DppAmin Dpp
12
$endgroup$
$begingroup$
This question is nearly impossible to read in its current state, and appears to be a duplicate of another that you posted just recently. StackExchange supports editing of questions, so you can modify your question to fix formatting or add clarification. You don't need to ask a whole new copy of a question each time you want to change something. :) Also, a bit more context and explanation wouldn't go amiss here.
$endgroup$
– Ricky Tensor
Jan 10 at 6:38
add a comment |
-1
-1
-1
$begingroup$
in leapfrog method i should compute this discretization equation
$$frac{u_i^{n+1}-u_i^{n-1}}{2∆t}=-cfrac{u_{i+1}^n-u_{i-1}^n}{2∆x}$$
my major problem is that how can I compute the $u_i^{n-1}$ term ???
thanks a lot
pde finite-difference-methods
asked Jan 10 at 6:21
Amin DppAmin Dpp
12
$endgroup$
in leapfrog method i should compute this discretization equation
$$frac{u_i^{n+1}-u_i^{n-1}}{2∆t}=-cfrac{u_{i+1}^n-u_{i-1}^n}{2∆x}$$
my major problem is that how can I compute the $u_i^{n-1}$ term ???
thanks a lot
pde finite-difference-methods
pde finite-difference-methods
asked Jan 10 at 6:21
Amin DppAmin Dpp
12
asked Jan 10 at 6:21
Amin DppAmin Dpp
12
edited Jan 10 at 7:47
Amin Dpp
asked Jan 10 at 6:21
Amin DppAmin Dpp
12
asked Jan 10 at 6:21
Amin DppAmin Dpp
12
asked Jan 10 at 6:21
Amin DppAmin Dpp
12
12
$begingroup$
This question is nearly impossible to read in its current state, and appears to be a duplicate of another that you posted just recently. StackExchange supports editing of questions, so you can modify your question to fix formatting or add clarification. You don't need to ask a whole new copy of a question each time you want to change something. :) Also, a bit more context and explanation wouldn't go amiss here.
$endgroup$
– Ricky Tensor
Jan 10 at 6:38
add a comment |
$begingroup$
This question is nearly impossible to read in its current state, and appears to be a duplicate of another that you posted just recently. StackExchange supports editing of questions, so you can modify your question to fix formatting or add clarification. You don't need to ask a whole new copy of a question each time you want to change something. :) Also, a bit more context and explanation wouldn't go amiss here.
$endgroup$
– Ricky Tensor
Jan 10 at 6:38
$begingroup$
This question is nearly impossible to read in its current state, and appears to be a duplicate of another that you posted just recently. StackExchange supports editing of questions, so you can modify your question to fix formatting or add clarification. You don't need to ask a whole new copy of a question each time you want to change something. :) Also, a bit more context and explanation wouldn't go amiss here.
$endgroup$
– Ricky Tensor
Jan 10 at 6:38
$begingroup$
This question is nearly impossible to read in its current state, and appears to be a duplicate of another that you posted just recently. StackExchange supports editing of questions, so you can modify your question to fix formatting or add clarification. You don't need to ask a whole new copy of a question each time you want to change something. :) Also, a bit more context and explanation wouldn't go amiss here.
$endgroup$
– Ricky Tensor
Jan 10 at 6:38
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
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',
autoActivateHeartbeat: false,
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
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3068306%2fhow-can-i-converge-my-leapfrog-code%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
draft saved
draft discarded
Thanks for contributing an answer to Mathematics Stack Exchange!
- 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.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3068306%2fhow-can-i-converge-my-leapfrog-code%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
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
$begingroup$
This question is nearly impossible to read in its current state, and appears to be a duplicate of another that you posted just recently. StackExchange supports editing of questions, so you can modify your question to fix formatting or add clarification. You don't need to ask a whole new copy of a question each time you want to change something. :) Also, a bit more context and explanation wouldn't go amiss here.
$endgroup$
– Ricky Tensor
Jan 10 at 6:38