# math

posted by .

What are the matrix used for?

• math -

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

## Similar Questions

1. ### math,algebra II

I have to work with these types of problems dealing with matrises can someone show me how to solve them.Heres one of them: Directions: Find the values of the variables in each equation in the first matrix it looks like this a+2 3z+1 …
2. ### MATHS----Matrix

For a given square matrix A the predicted values of matrix B are: predicted B=A(A'A)^(-1)A'B why is the matrix C=A(A'A)^(-1)A' an idempotent and symmetric matrix?
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I have a few questions about T-Matrix. In excel, I am suppose to work with powered matrices to construct a weighted T matrix, using a scalar of .7. Does this mean I multiply each of the powered matrices by .7?
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Fine the size of the following matrix and its additive inverse matrix. Identify if it is a square, column, or row matrix: [ 2 -3 7 1 0 4 ]
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This is a matrix question. R is the matrix (3r 1) (s 2s) 1. State, in terms of s and r the determinant of R 2. If r=1/3 and s=4 determine the inverse of R 3.State the pair of r and s not including 0, which would make the matrix R a …
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This is a matrix question. R is the matrix (3r 1) (s 2s) 1. State, in terms of s and r the determinant of R 2. If r=1/3 and s=4 determine the inverse of R 3.State the pair of r and s not including 0, which would make the matrix R a …
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For problems 13 and 14, assign each letter and a blank space to a number as shown by the alphabet table below. Use the code [1,-2_-3,7] encode the phrase "ONE QUESTION TO GO" The matrix C=[1,-2_-3,7] was used to encode a phrase to …
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Directions: Use the following matrix to perform the elementary row operations sequentially. A=[3 2 |8] [5 2 |12] 1.) (1/3) R1 From the original matrix 2.) -5R1+R R2 From matrix in question 1.
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Hi! I need help with these two questions. Thanks! :) 1.) Can we multiply the Matrix A (which is 3 x 4 matrix) by the other matrix, Matrix B (which is 3 x 4 matrix)?
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When you are multiplying a 7 x 3 matrix by a 3 x 2 matrix, what would the resulting matrix be of which order?

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Based on the content structure of the given text, here is my analysis:

The text appears to be a series of forum posts or comments, likely from a math help website or discussion board. It contains multiple questions and responses about matrices and math problems.
multiple_questions

the text contains multiple distinct math questions and comments, including:
- a question about what matrices are used for
- a moderator comment asking people not to repeat posts
- a similar question about matrices
- a question about finding values in a matrix equation

however, none of the questions have answers provided in the text. the responses are either from a moderator or are duplicate questions.
Given a text passage, determine:
    1. If it contains a mathematical question (including word problems or calculations)
    2. If an answer to that mathematical question is provided in the text

First, describe the content structure you found in 1-2 sentences.

Then provide your analysis in the following format:
TYPE: <one of the following values>
- NO_QUESTION
- SINGLE_QUESTION
- SINGLE_QUESTION_WITH_ANSWER
- MULTIPLE_QUESTIONS
- MULTIPLE_QUESTIONS_WITH_ANSWERS
system
# math

posted by .

What are the matrix used for?

• math -

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

## Similar Questions

1. ### math,algebra II

I have to work with these types of problems dealing with matrises can someone show me how to solve them.Heres one of them: Directions: Find the values of the variables in each equation in the first matrix it looks like this a+2 3z+1 …
2. ### MATHS----Matrix

For a given square matrix A the predicted values of matrix B are: predicted B=A(A'A)^(-1)A'B why is the matrix C=A(A'A)^(-1)A' an idempotent and symmetric matrix?
3. ### Math

I have a few questions about T-Matrix. In excel, I am suppose to work with powered matrices to construct a weighted T matrix, using a scalar of .7. Does this mean I multiply each of the powered matrices by .7?
4. ### Math

Fine the size of the following matrix and its additive inverse matrix. Identify if it is a square, column, or row matrix: [ 2 -3 7 1 0 4 ]
5. ### math

This is a matrix question. R is the matrix (3r 1) (s 2s) 1. State, in terms of s and r the determinant of R 2. If r=1/3 and s=4 determine the inverse of R 3.State the pair of r and s not including 0, which would make the matrix R a …
6. ### math

This is a matrix question. R is the matrix (3r 1) (s 2s) 1. State, in terms of s and r the determinant of R 2. If r=1/3 and s=4 determine the inverse of R 3.State the pair of r and s not including 0, which would make the matrix R a …
7. ### algebra

For problems 13 and 14, assign each letter and a blank space to a number as shown by the alphabet table below. Use the code [1,-2_-3,7] encode the phrase "ONE QUESTION TO GO" The matrix C=[1,-2_-3,7] was used to encode a phrase to …
8. ### Math

Directions: Use the following matrix to perform the elementary row operations sequentially. A=[3 2 |8] [5 2 |12] 1.) (1/3) R1 From the original matrix 2.) -5R1+R R2 From matrix in question 1.
9. ### Math

Hi! I need help with these two questions. Thanks! :) 1.) Can we multiply the Matrix A (which is 3 x 4 matrix) by the other matrix, Matrix B (which is 3 x 4 matrix)?
10. ### Math

When you are multiplying a 7 x 3 matrix by a 3 x 2 matrix, what would the resulting matrix be of which order?

More Similar Questions
user
Based on the content structure of the given text, here is my analysis:

The text appears to be a series of forum posts or comments, likely from a math help website or discussion board. It contains multiple questions and responses about matrices and math problems.

TYPE: MULTIPLE_QUESTIONS

The text contains multiple distinct math questions and comments, including:
- A question about what matrices are used for
- A moderator comment asking people not to repeat posts
- A similar question about matrices
- A question about finding values in a matrix equation

However, none of the questions have answers provided in the text. The responses are either from a moderator or are duplicate questions.