| 单词 | identity matrix |
| 释义 | > as lemmasidentity matrix identity matrix n. Mathematics a matrix in which all the elements of the principal diagonal are one and the remaining elements zero, so that its product with another matrix gives that matrix. ΘΚΠ the world > relative properties > number > mathematical number or quantity > numerical arrangement > [noun] > array > matrix matrix1850 unit matrix1861 adjugate1882 adjoint1889 submatrix1903 identity matrix1908 row matrix1936 transpose1937 singular matrix1964 1908 Trans. Amer. Math. Soc. 9 127 Each I is a unit or identity matrix. 2006 K. F. Riley et al. Math. Methods Physics & Engin. (ed. 3) viii. 255 The identity matrix must be square. < as lemmas |
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