| 1. | Clements called them ecads . 克里门则称它们为适应型。 |
| 2. | if =a, then a is called hermitian. 如果A,则称A为厄尔米特矩阵。 |
| 3. | A graph is regular if every vertex has the same degree . 如果一个图的每个顶点都具有相同的度数,则称它是正则图。 |
| 4. | a complex n×n matrix u is called unitary if u*u=in. 一个复nn矩阵U如果U*UIn,则称它为酉矩阵。 |
| 5. | The permutation is even if the number of inversions it contains is even . 如果一个排列中含有的反序的个数是偶数,则称它为偶排列。 |
| 6. | If a*=a, then a is called her mitian after the french mathematician hermite. 如果A*A,则称A为厄尔米特矩阵(以法国数学家厄尔米特命名)。 |
| 7. | Two nodes of a graph are said to be adjacent if there is a branch between them . 如果图中二节点间可有一个分枝存在,则称此二节点为相邻的。 |
| 8. | The zero or null matrix denoted by 0 is definde as a matrix all of whose elements are zero . 如果一个矩阵的所有元素都为零,则称它为零矩阵。 |
| 9. | If one of two quantities increases as the other decreases, we say that they are in inverse proportion . 若二量之间一增加一减少,我们则称二者成反比例。 |
| 10. | By definition two colors are said to be complementary when their combination yields white light . 根据定义,若两种颜色的光加起来得到白光,则称它们为互补色。 |