Matrix is an arrangement of numbers into rows and columns. Make your first introduction with matrices and learn about their dimensions and elements.
Log in Odysseas Fourakis 8 years agoPosted 8 years ago. Direct link to Odysseas Fourakis's post “On problem six why doesn'...” On problem six why doesn't answer B not satisfy the equation? But answer C does? The six is in the same spot as in both answers. • (0 votes) prasadgogate.in 8 years agoPosted 8 years ago. Direct link to prasadgogate.in's post “Because, first part of th...” Because, first part of the question (Matrix 2 x 3) is not the condition second option satisfies. (115 votes) Sayan Bose 7 years agoPosted 7 years ago. Direct link to Sayan Bose's post “Hi my name is Sayan, I st...” Hi my name is Sayan, I still haven't understood the relevance of matrices. My request to you would be if you could give a real life scenario where matrices are used and/or another place where it has a practical use in everyday life. Also do explain this with an example for my better understanding? • (28 votes) Ron Joniak 7 years agoPosted 7 years ago. Direct link to Ron Joniak's post “Matrix manipulation are u...” Matrix manipulation are used in video game creation, computer graphics techniques, and to analyze statistics. There are many more uses for matrices, but they tend to show up in more deeper understandings of disciplines. (40 votes) georgeena garcia 6 years agoPosted 6 years ago. Direct link to georgeena garcia's post “on problem 6, why is the ...” on problem 6, why is the answer c and not b ? it is the same answer just in different positions. • (6 votes) Dominic Nguyen 6 years agoPosted 6 years ago. Direct link to Dominic Nguyen's post “No, since it is row by co...” No, since it is row by columns, answer b would be a 3 x 2 matrix not a 2 x 3 matrix, hope this helps (29 votes) fellow programmer 8 years agoPosted 8 years ago. Direct link to fellow programmer's post “why is there two answers ...” why is there two answers to question number 6? • (0 votes) Edward Moore 8 years agoPosted 8 years ago. Direct link to Edward Moore's post “#2 is wrong because it is...” #2 is wrong because it is a 3x2 matrix. We always count rows first, then columns. How tall is the matrix (2) then how wide is it (3)? That leaves #3 and #4 as options. Row 1 column 2 = 6. That means #3 is the right choice. (36 votes) Rithvik Rajesh Krishnan 8 years agoPosted 8 years ago. Direct link to Rithvik Rajesh Krishnan's post “Can there be a matrix wit...” Can there be a matrix with 0x0. If yes, then how is it represented • (6 votes) Wytse Gensemer 7 years agoPosted 7 years ago. Direct link to Wytse Gensemer's post “It could be just an empty...” It could be just an empty matrix, like this: [] (11 votes) Sabeen 6 years agoPosted 6 years ago. Direct link to Sabeen's post “What are matrices used fo...” What are matrices used for in math? • (5 votes) kubleeka 6 years agoPosted 6 years ago. Direct link to kubleeka's post “A lot of things can be th...” A lot of things can be thought of as transformations of space, taking every point in 3D space and moving it somewhere else. Matrices are a compact way of talking about and working with a certain class of transformations. (8 votes) L_Lawliet a year agoPosted a year ago. Direct link to L_Lawliet's post “This Is More Easier Than ...” This Is More Easier Than Vectors Why isn't This Taught Before Teaching Vectors • (2 votes) Tanner P a year agoPosted a year ago. Direct link to Tanner P's post “You you have to learn ab...” You you have to learn about vectors first because you will be using matrices to apply transformations to vectors. This will also be linked to solving systems of equations and a whole bunch of other fun stuff :) (10 votes) Suresh123.Ani 3 years agoPosted 3 years ago. Direct link to Suresh123.Ani's post “Is [0] the same as an emp...” Is [0] the same as an empty one []? • (3 votes) Iqra Hunzai 3 years agoPosted 3 years ago. Direct link to Iqra Hunzai's post “Probably no, because [] i...” Probably no, because [] is empty, but [0] isn't. They're called zero matrices and they're used in matrices the same way regular zeroes are. (7 votes) Jurioe Jophy a year agoPosted a year ago. Direct link to Jurioe Jophy's post “The i and j in matrices i...” The i and j in matrices is inverse from the notation in Cartesian axes. Why is it defined so confusing? • (6 votes) Brayden Garner 6 months agoPosted 6 months ago. Direct link to Brayden Garner's post “I hope this helps you to ...” I hope this helps you to contain your confusion: A matrix is like a list of vectors of the same space (same number of entries). Let v be a vector such that v = {1, 2, 3}. Now let u be a new vector u = A matrix can be thought of as a list of vectors, so a vector with vector entries (a matrix) could be A = {v, u}, written as A = Hope this helps! (1 vote) Manab Biswas 5 years agoPosted 5 years ago. Direct link to Manab Biswas's post “what is the purpose of su...” what is the purpose of such arrangement of numbers in a matrix? • (3 votes) obiwan kenobi 5 years agoPosted 5 years ago. Direct link to obiwan kenobi's post “It essentially enables yo...” It essentially enables you to store data in such a way that you can easily perform operations on the entire data set. (5 votes)Want to join the conversation?
the following are the answers:
1. (the one this page call correct) answer #3
2. (the one that is also correct but this page call wrong) answer #2
However, such a matrix could not contain any information and would therefore be useless.
We write v as v =
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 1 4 |
| 2 5 |
| 3 6 |
and that is a matrix. Notice that the columns are more closely related (of the same subvector), so it makes sense that we might want to consider vertical decent before horizontal comparison. This is oposite to the x and y (abscissa and ordinate) of the Cartesian axes.
