Derivative of a function of matrices product with respect to a single matrix












0












$begingroup$


I am reading a paper and cannot understand some math that deals with a derivative of a function of matrix multiplication with respect to a single matrix.



Can someone explain me how this is calculated
enter image description here



Last matrix is a vector, thus $w_{prod}$ is a vector.
E.g what calc and linear algebra rules are used here and how we get this final derivative.



Thank you!










share|cite|improve this question











$endgroup$

















    0












    $begingroup$


    I am reading a paper and cannot understand some math that deals with a derivative of a function of matrix multiplication with respect to a single matrix.



    Can someone explain me how this is calculated
    enter image description here



    Last matrix is a vector, thus $w_{prod}$ is a vector.
    E.g what calc and linear algebra rules are used here and how we get this final derivative.



    Thank you!










    share|cite|improve this question











    $endgroup$















      0












      0








      0





      $begingroup$


      I am reading a paper and cannot understand some math that deals with a derivative of a function of matrix multiplication with respect to a single matrix.



      Can someone explain me how this is calculated
      enter image description here



      Last matrix is a vector, thus $w_{prod}$ is a vector.
      E.g what calc and linear algebra rules are used here and how we get this final derivative.



      Thank you!










      share|cite|improve this question











      $endgroup$




      I am reading a paper and cannot understand some math that deals with a derivative of a function of matrix multiplication with respect to a single matrix.



      Can someone explain me how this is calculated
      enter image description here



      Last matrix is a vector, thus $w_{prod}$ is a vector.
      E.g what calc and linear algebra rules are used here and how we get this final derivative.



      Thank you!







      calculus linear-algebra integration multivariable-calculus derivatives






      share|cite|improve this question















      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Jan 15 at 20:16







      YohanRoth

















      asked Jan 15 at 20:09









      YohanRothYohanRoth

      6381714




      6381714






















          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%2f3074898%2fderivative-of-a-function-of-matrices-product-with-respect-to-a-single-matrix%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%2f3074898%2fderivative-of-a-function-of-matrices-product-with-respect-to-a-single-matrix%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

          Can a sorcerer learn a 5th-level spell early by creating spell slots using the Font of Magic feature?

          Does disintegrating a polymorphed enemy still kill it after the 2018 errata?

          A Topological Invariant for $pi_3(U(n))$