| 单词 | determinant |
| 释义 | determinant A number derived from the values of the elements of a square matrix. For example, if aij are the elements in the ith row and jth column of a 2 * 2 matrix, its determinant is given by Δ = a11 a22 -a12 a21 ; the derivation of determinants for larger matrices is similar in principle. A major function of determinants is to check whether the rows or columns of a matrix are independent; if they are not independent then the determinant is zero. It can be seen that if a11 /a12 = a21 /a22, Δ = 0. |
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