Summation with independent variables as different sized arrays in matlab












0












$begingroup$


I am new to matlab and am learning it on my own. I am trying to solve and graph the following summation in matlab



t = [0:.05:60]

y = [0:1:100]

u = symsum(sin(((n*pi)/h)*y)*(-((2/(n*pi*rho))*(cos(n*pi)-1))*((P1/((mu*(pi^2)*(n^2))/(h^2)))*(1-exp(-((mu*(pi^2)*(n^2))/(h^2))*t))+P2*((((mu*(pi^2)*(n^2))/(h^2))*(cos(omega*t)-exp(-((mu*(pi^2)*(n^2))/(h^2))*t))+omega*sin(omega*t))/(((mu*(pi^2)*(n^2))/(h^2)))^2+(omega^2)))),n,1,10)


All of the other variables in the sum are numbers.



However, I keep getting the following errors:



Error using symengine
Dimensions do not match.

Error in sym/privBinaryOp (line 1002)
Csym = mupadmex(op,args{1}.s, args{2}.s, varargin{:});

Error in * (line 315)
X = privBinaryOp(A, B, 'symobj::mtimes');



How do I correct my code to run correctly?











share|cite|improve this question











$endgroup$












  • $begingroup$
    t and y are row vectors of different sizes. In MATLAB, * is matrix multiplication, and .* is element-wise multiplication, but neither seems applicable.
    $endgroup$
    – Fabio Somenzi
    Dec 5 '18 at 5:03
















0












$begingroup$


I am new to matlab and am learning it on my own. I am trying to solve and graph the following summation in matlab



t = [0:.05:60]

y = [0:1:100]

u = symsum(sin(((n*pi)/h)*y)*(-((2/(n*pi*rho))*(cos(n*pi)-1))*((P1/((mu*(pi^2)*(n^2))/(h^2)))*(1-exp(-((mu*(pi^2)*(n^2))/(h^2))*t))+P2*((((mu*(pi^2)*(n^2))/(h^2))*(cos(omega*t)-exp(-((mu*(pi^2)*(n^2))/(h^2))*t))+omega*sin(omega*t))/(((mu*(pi^2)*(n^2))/(h^2)))^2+(omega^2)))),n,1,10)


All of the other variables in the sum are numbers.



However, I keep getting the following errors:



Error using symengine
Dimensions do not match.

Error in sym/privBinaryOp (line 1002)
Csym = mupadmex(op,args{1}.s, args{2}.s, varargin{:});

Error in * (line 315)
X = privBinaryOp(A, B, 'symobj::mtimes');



How do I correct my code to run correctly?











share|cite|improve this question











$endgroup$












  • $begingroup$
    t and y are row vectors of different sizes. In MATLAB, * is matrix multiplication, and .* is element-wise multiplication, but neither seems applicable.
    $endgroup$
    – Fabio Somenzi
    Dec 5 '18 at 5:03














0












0








0





$begingroup$


I am new to matlab and am learning it on my own. I am trying to solve and graph the following summation in matlab



t = [0:.05:60]

y = [0:1:100]

u = symsum(sin(((n*pi)/h)*y)*(-((2/(n*pi*rho))*(cos(n*pi)-1))*((P1/((mu*(pi^2)*(n^2))/(h^2)))*(1-exp(-((mu*(pi^2)*(n^2))/(h^2))*t))+P2*((((mu*(pi^2)*(n^2))/(h^2))*(cos(omega*t)-exp(-((mu*(pi^2)*(n^2))/(h^2))*t))+omega*sin(omega*t))/(((mu*(pi^2)*(n^2))/(h^2)))^2+(omega^2)))),n,1,10)


All of the other variables in the sum are numbers.



However, I keep getting the following errors:



Error using symengine
Dimensions do not match.

Error in sym/privBinaryOp (line 1002)
Csym = mupadmex(op,args{1}.s, args{2}.s, varargin{:});

Error in * (line 315)
X = privBinaryOp(A, B, 'symobj::mtimes');



How do I correct my code to run correctly?











share|cite|improve this question











$endgroup$




I am new to matlab and am learning it on my own. I am trying to solve and graph the following summation in matlab



t = [0:.05:60]

y = [0:1:100]

u = symsum(sin(((n*pi)/h)*y)*(-((2/(n*pi*rho))*(cos(n*pi)-1))*((P1/((mu*(pi^2)*(n^2))/(h^2)))*(1-exp(-((mu*(pi^2)*(n^2))/(h^2))*t))+P2*((((mu*(pi^2)*(n^2))/(h^2))*(cos(omega*t)-exp(-((mu*(pi^2)*(n^2))/(h^2))*t))+omega*sin(omega*t))/(((mu*(pi^2)*(n^2))/(h^2)))^2+(omega^2)))),n,1,10)


All of the other variables in the sum are numbers.



However, I keep getting the following errors:



Error using symengine
Dimensions do not match.

Error in sym/privBinaryOp (line 1002)
Csym = mupadmex(op,args{1}.s, args{2}.s, varargin{:});

Error in * (line 315)
X = privBinaryOp(A, B, 'symobj::mtimes');



How do I correct my code to run correctly?








summation matlab






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited Dec 5 '18 at 4:25









Mason

1,9551530




1,9551530










asked Dec 5 '18 at 4:07









Bryanna BaileyBryanna Bailey

1




1












  • $begingroup$
    t and y are row vectors of different sizes. In MATLAB, * is matrix multiplication, and .* is element-wise multiplication, but neither seems applicable.
    $endgroup$
    – Fabio Somenzi
    Dec 5 '18 at 5:03


















  • $begingroup$
    t and y are row vectors of different sizes. In MATLAB, * is matrix multiplication, and .* is element-wise multiplication, but neither seems applicable.
    $endgroup$
    – Fabio Somenzi
    Dec 5 '18 at 5:03
















$begingroup$
t and y are row vectors of different sizes. In MATLAB, * is matrix multiplication, and .* is element-wise multiplication, but neither seems applicable.
$endgroup$
– Fabio Somenzi
Dec 5 '18 at 5:03




$begingroup$
t and y are row vectors of different sizes. In MATLAB, * is matrix multiplication, and .* is element-wise multiplication, but neither seems applicable.
$endgroup$
– Fabio Somenzi
Dec 5 '18 at 5:03










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


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3026604%2fsummation-with-independent-variables-as-different-sized-arrays-in-matlab%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














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3026604%2fsummation-with-independent-variables-as-different-sized-arrays-in-matlab%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

Probability when a professor distributes a quiz and homework assignment to a class of n students.

Aardman Animations

Are they similar matrix