Unclear proof in the Gauss-Markov theoremProof that Gauss-Jordan elimination worksPerron-Frobenius theoremWhat is the matrix norm in defining the generator of a continuous time Markov chain?Square root of a positive-definite Markov matrixThe characteristic polynomial of A matrix A^k related to AHow to convert Gauss-Siedel method to Successive Over Relaxation method.What's wrong with my “proof” of the Cayley-Hamilton Theorem?Theorems of solution of a linear system in linear algebra.How to understand the improvement of Levenberg-Marquardt algorithm to Gauss-Newton method?Markov Chain Probability question
How to check whether module is loaded with custom configurations?
What are some noteworthy "mic-drop" moments in math?
Virginia employer terminated employee and wants signing bonus returned
Why is a very small peak with larger m/z not considered to be the molecular ion?
Conservation of Mass and Energy
Does an unused member variable take up memory?
Doesn't allowing a user mode program to access kernel space memory and execute the IN and OUT instructions defeat the purpose of having CPU modes?
What will happen if my luggage gets delayed?
Why does Central Limit Theorem break down in my simulation?
Power Strip for Europe
Why couldn't the separatists legally leave the Republic?
Haman going to the second feast dirty
Getting the || sign while using Kurier
Doubts in understanding some concepts of potential energy
Can't make sense of a paragraph from Lovecraft
PTIJ: Why does only a Shor Tam ask at the Seder, and not a Shor Mu'ad?
Professor forcing me to attend a conference, I can't afford even with 50% funding
What is Earthy controling in the ISS cupola?
How does Ehrenfest's theorem apply to the quantum harmonic oscillator?
Is divide-by-zero a security vulnerability?
Why restrict private health insurance?
Trig Subsitution When There's No Square Root
What is this diamond of every day?
Does "Until when" sound natural for native speakers?
Unclear proof in the Gauss-Markov theorem
Proof that Gauss-Jordan elimination worksPerron-Frobenius theoremWhat is the matrix norm in defining the generator of a continuous time Markov chain?Square root of a positive-definite Markov matrixThe characteristic polynomial of A matrix A^k related to AHow to convert Gauss-Siedel method to Successive Over Relaxation method.What's wrong with my “proof” of the Cayley-Hamilton Theorem?Theorems of solution of a linear system in linear algebra.How to understand the improvement of Levenberg-Marquardt algorithm to Gauss-Newton method?Markov Chain Probability question
$begingroup$
I don't understand a step in the proof of the Gauss-Markov theorem:
Mainly, why can we simply replace y with e, given that y is defined as:
Thanks in advance!
matrices least-squares
$endgroup$
add a comment |
$begingroup$
I don't understand a step in the proof of the Gauss-Markov theorem:
Mainly, why can we simply replace y with e, given that y is defined as:
Thanks in advance!
matrices least-squares
$endgroup$
add a comment |
$begingroup$
I don't understand a step in the proof of the Gauss-Markov theorem:
Mainly, why can we simply replace y with e, given that y is defined as:
Thanks in advance!
matrices least-squares
$endgroup$
I don't understand a step in the proof of the Gauss-Markov theorem:
Mainly, why can we simply replace y with e, given that y is defined as:
Thanks in advance!
matrices least-squares
matrices least-squares
asked yesterday
ToTomToTom
526
526
add a comment |
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
);
);
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%2f3141031%2funclear-proof-in-the-gauss-markov-theorem%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
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.
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%2f3141031%2funclear-proof-in-the-gauss-markov-theorem%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