chapter fourr!
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Matrices | Matrix with m rows and n columns has dimensions m X n
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Equal matrices | only equal if they have the same dimensions and their corresponding elements are equal
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(x,y) | can be read as a 1 X 2 matrix.
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Matrix Addition | If two matrices A and B have the same dimentions, there sum A + B is the matrix in which each element is the sum of the corresponding elements in A and B
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Additon of Matrices is commutatuve. | A + B = B + A
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Matrix Multiplication | If A is an m X n matrix and B is an n X p matrix. Then the product A*B is the mX p matrix whose element in row I and colum j is the product of row I of A and j of B.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
danielle.
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