Flashcards
matrices
Cards in this deck (10)
- 1what is a matrixA matrix is an array of elements (which are usually numbers) set out in a pair of brackets
- 2how can you describe the size of a matrixgenerally you can refer to a matrix 'n x m'
where 'n' is the number of rows and 'm' is the number of columns - 3what is a square matrixA square matrix is one where the number of rows and columns are the same
- 4what is a zero matrixa zero matrix is one in which all of the elements are zero. the zero matrix is denoted by '0'
- 5what is an identity matrixA identity matrix is a 'square matrix' in which the elements on the leading diagonal (starting top left) are all 1 and the remaining elements are 0. identity matrices are denoted by I (subscript) k, where k describes the size.
- 6draw what the 3 x 3 identity matrix is;a
- 7how are matrices usually representedmatrices are usually represented with bold capital letters such as 'M' or 'A'
- 8what does additively conformable meanmatrices which are the same size are said to be additively conformable, this is because you can only add or subtract matrices that are the same size
- 9how do you add and subtract matricesto add or subtract matrices, you add and subtract the corresponding elements in each matrix
- 10—
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- A level further maths (core pure mathematics as/ year 1) Flashcards on matrices, created by Troy Campbell on 19/07/2018.
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- Troy Campbell
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