Solution to linear equations [on hold] The 2019 Stack Overflow Developer Survey Results Are In Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)The solution of the following two equations in two unknownsUnderdetermined Linear Systems and the Least Squares SolutionSolution of a system of linear equationsA couple of questions about a proof of the fact that a linear system has a non-trivial solutionLinear Algebra: System of EquationsLinear equations over finite field of size 2Solving a combined system of linear and bilinear equationsUnderstanding solution of system of linear equationslinear equations has an infinite number of solutionSolve the following system of linear equations
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Solution to linear equations [on hold]
The 2019 Stack Overflow Developer Survey Results Are In
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)The solution of the following two equations in two unknownsUnderdetermined Linear Systems and the Least Squares SolutionSolution of a system of linear equationsA couple of questions about a proof of the fact that a linear system has a non-trivial solutionLinear Algebra: System of EquationsLinear equations over finite field of size 2Solving a combined system of linear and bilinear equationsUnderstanding solution of system of linear equationslinear equations has an infinite number of solutionSolve the following system of linear equations
$begingroup$
Please, help me answer the following question:
Given $(x_n,y_n),;;n=1,ldots,N$, we need to solve for $m$ and $b$ from
$$
mx_n +b = y_n, ;;n=1,ldots,N.
$$
Write this as a linear system where the unknowns are $m$ and $b$.
Write down, and solve the normal equations for the unknows $m$ and $b$.
My Answer to 1 is:
$$
sum_n=1^N (mx_n + b) = sum_n=1^N (y_n).
$$
But how to solve q 2?
Please, help me with this issue.
linear-algebra matrices
asked Apr 8 at 12:57
Alberto AlvarezAlberto Alvarez
22
New contributor
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
put on hold as off-topic by Gerry Myerson, Adrian Keister, GNUSupporter 8964民主女神 地下教會, José Carlos Santos, Alexander Gruber♦ 2 days ago
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Adrian Keister, GNUSupporter 8964民主女神 地下教會, José Carlos Santos, Alexander Gruber
add a comment |
$begingroup$
Please, help me answer the following question:
Given $(x_n,y_n),;;n=1,ldots,N$, we need to solve for $m$ and $b$ from
$$
mx_n +b = y_n, ;;n=1,ldots,N.
$$
Write this as a linear system where the unknowns are $m$ and $b$.
Write down, and solve the normal equations for the unknows $m$ and $b$.
My Answer to 1 is:
$$
sum_n=1^N (mx_n + b) = sum_n=1^N (y_n).
$$
But how to solve q 2?
Please, help me with this issue.
linear-algebra matrices
asked Apr 8 at 12:57
Alberto AlvarezAlberto Alvarez
22
New contributor
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
put on hold as off-topic by Gerry Myerson, Adrian Keister, GNUSupporter 8964民主女神 地下教會, José Carlos Santos, Alexander Gruber♦ 2 days ago
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Adrian Keister, GNUSupporter 8964民主女神 地下教會, José Carlos Santos, Alexander Gruber
2
$begingroup$
Welcome to Math Stack Exchange. The sums you wrote could be equal without the summands being equal. Consider instead a diagonal $Ntimes N$ matrix
$endgroup$
– J. W. Tanner
Apr 8 at 13:00
$begingroup$
Do you know what an "overdetermined system" is?
$endgroup$
– 5xum
Apr 8 at 13:06
$begingroup$
More to the point, do you know what is meant by "the normal equations"? If not, go have a good look at whatever study materials you have available – this is something you absolutely must learn.
$endgroup$
– Gerry Myerson
Apr 8 at 13:20
$begingroup$
Are you still here, Alberto?
$endgroup$
– Gerry Myerson
Apr 10 at 0:22
$begingroup$
I'm voting to close this question as off-topic because OP has abandoned it.
$endgroup$
– Gerry Myerson
2 days ago
add a comment |
$begingroup$
Please, help me answer the following question:
Given $(x_n,y_n),;;n=1,ldots,N$, we need to solve for $m$ and $b$ from
$$
mx_n +b = y_n, ;;n=1,ldots,N.
$$
Write this as a linear system where the unknowns are $m$ and $b$.
Write down, and solve the normal equations for the unknows $m$ and $b$.
My Answer to 1 is:
$$
sum_n=1^N (mx_n + b) = sum_n=1^N (y_n).
$$
But how to solve q 2?
Please, help me with this issue.
linear-algebra matrices
asked Apr 8 at 12:57
Alberto AlvarezAlberto Alvarez
22
New contributor
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Please, help me answer the following question:
Given $(x_n,y_n),;;n=1,ldots,N$, we need to solve for $m$ and $b$ from
$$
mx_n +b = y_n, ;;n=1,ldots,N.
$$
Write this as a linear system where the unknowns are $m$ and $b$.
Write down, and solve the normal equations for the unknows $m$ and $b$.
My Answer to 1 is:
$$
sum_n=1^N (mx_n + b) = sum_n=1^N (y_n).
$$
But how to solve q 2?
Please, help me with this issue.
linear-algebra matrices
linear-algebra matrices
asked Apr 8 at 12:57
Alberto AlvarezAlberto Alvarez
22
New contributor
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 8 at 12:57
Alberto AlvarezAlberto Alvarez
22
New contributor
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 8 at 12:57
Alberto AlvarezAlberto Alvarez
22
New contributor
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked Apr 8 at 12:57
Alberto AlvarezAlberto Alvarez
22
asked Apr 8 at 12:57
Alberto AlvarezAlberto Alvarez
22
22
New contributor
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Alberto Alvarez is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
put on hold as off-topic by Gerry Myerson, Adrian Keister, GNUSupporter 8964民主女神 地下教會, José Carlos Santos, Alexander Gruber♦ 2 days ago
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Adrian Keister, GNUSupporter 8964民主女神 地下教會, José Carlos Santos, Alexander Gruber
put on hold as off-topic by Gerry Myerson, Adrian Keister, GNUSupporter 8964民主女神 地下教會, José Carlos Santos, Alexander Gruber♦ 2 days ago
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question is missing context or other details: Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and motivation, relevant definitions, source, possible strategies, your current progress, why the question is interesting or important, etc." – Adrian Keister, GNUSupporter 8964民主女神 地下教會, José Carlos Santos, Alexander Gruber
2
$begingroup$
Welcome to Math Stack Exchange. The sums you wrote could be equal without the summands being equal. Consider instead a diagonal $Ntimes N$ matrix
$endgroup$
– J. W. Tanner
Apr 8 at 13:00
$begingroup$
Do you know what an "overdetermined system" is?
$endgroup$
– 5xum
Apr 8 at 13:06
$begingroup$
More to the point, do you know what is meant by "the normal equations"? If not, go have a good look at whatever study materials you have available – this is something you absolutely must learn.
$endgroup$
– Gerry Myerson
Apr 8 at 13:20
$begingroup$
Are you still here, Alberto?
$endgroup$
– Gerry Myerson
Apr 10 at 0:22
$begingroup$
I'm voting to close this question as off-topic because OP has abandoned it.
$endgroup$
– Gerry Myerson
2 days ago
add a comment |
2
$begingroup$
Welcome to Math Stack Exchange. The sums you wrote could be equal without the summands being equal. Consider instead a diagonal $Ntimes N$ matrix
$endgroup$
– J. W. Tanner
Apr 8 at 13:00
$begingroup$
Do you know what an "overdetermined system" is?
$endgroup$
– 5xum
Apr 8 at 13:06
$begingroup$
More to the point, do you know what is meant by "the normal equations"? If not, go have a good look at whatever study materials you have available – this is something you absolutely must learn.
$endgroup$
– Gerry Myerson
Apr 8 at 13:20
$begingroup$
Are you still here, Alberto?
$endgroup$
– Gerry Myerson
Apr 10 at 0:22
$begingroup$
I'm voting to close this question as off-topic because OP has abandoned it.
$endgroup$
– Gerry Myerson
2 days ago
2
2
$begingroup$
Welcome to Math Stack Exchange. The sums you wrote could be equal without the summands being equal. Consider instead a diagonal $Ntimes N$ matrix
$endgroup$
– J. W. Tanner
Apr 8 at 13:00
$begingroup$
Welcome to Math Stack Exchange. The sums you wrote could be equal without the summands being equal. Consider instead a diagonal $Ntimes N$ matrix
$endgroup$
– J. W. Tanner
Apr 8 at 13:00
$begingroup$
Do you know what an "overdetermined system" is?
$endgroup$
– 5xum
Apr 8 at 13:06
$begingroup$
Do you know what an "overdetermined system" is?
$endgroup$
– 5xum
Apr 8 at 13:06
$begingroup$
More to the point, do you know what is meant by "the normal equations"? If not, go have a good look at whatever study materials you have available – this is something you absolutely must learn.
$endgroup$
– Gerry Myerson
Apr 8 at 13:20
$begingroup$
More to the point, do you know what is meant by "the normal equations"? If not, go have a good look at whatever study materials you have available – this is something you absolutely must learn.
$endgroup$
– Gerry Myerson
Apr 8 at 13:20
$begingroup$
Are you still here, Alberto?
$endgroup$
– Gerry Myerson
Apr 10 at 0:22
$begingroup$
Are you still here, Alberto?
$endgroup$
– Gerry Myerson
Apr 10 at 0:22
$begingroup$
I'm voting to close this question as off-topic because OP has abandoned it.
$endgroup$
– Gerry Myerson
2 days ago
$begingroup$
I'm voting to close this question as off-topic because OP has abandoned it.
$endgroup$
– Gerry Myerson
2 days ago
add a comment |
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2
$begingroup$
Welcome to Math Stack Exchange. The sums you wrote could be equal without the summands being equal. Consider instead a diagonal $Ntimes N$ matrix
$endgroup$
– J. W. Tanner
Apr 8 at 13:00
$begingroup$
Do you know what an "overdetermined system" is?
$endgroup$
– 5xum
Apr 8 at 13:06
$begingroup$
More to the point, do you know what is meant by "the normal equations"? If not, go have a good look at whatever study materials you have available – this is something you absolutely must learn.
$endgroup$
– Gerry Myerson
Apr 8 at 13:20
$begingroup$
Are you still here, Alberto?
$endgroup$
– Gerry Myerson
Apr 10 at 0:22
$begingroup$
I'm voting to close this question as off-topic because OP has abandoned it.
$endgroup$
– Gerry Myerson
2 days ago