《生物医学工程专业英语》Unit 16 Vectors and Matrices.pptVIP

Unit 16 Vectors and Matrices Dec 26th, 2014 New words array 数组，队列，阵列 N-dimension N维 Column 列 nonsingular 非奇异的 Constant 常数 norm 范数，向量长度 Definition 定义 ordered 有序的 denote 表示，指示 orthogonal 正交的，互相垂直的 Determinant 行列式，决定性的 outer product 外积 diagonal 对角线（的） product 乘积 Euclidean 欧几里得的 pseudoinverse 伪逆矩阵 foregoing 上述的 rank 秩 New words fraught 充满…的 rectangular 矩形的 identity matrix 单位矩阵 row 列 ill conditioned 病态的 scalar 标量 indices 指标（index复数） singular 单数，奇异的 inner product 内积 square matrix 方阵 interchange 互换 submatrix 子矩阵 inverse 逆，倒数，反面 symmetric 对称的 inversion 反转，倒置 trace 迹 likewise 同样地 transpose 转置 matrix 矩阵 unitary 幺正的 M-by-N matrix M乘N矩阵 unless otherwise specified 除非另有规定 Notes 1. M-by-N matrix (Line 3): M行N列的矩阵。例如3 by 4 matrix表示3行4列矩阵；a 256 by 256 image表示一幅像素数为256×256的图像。 2. Indices (Line 6): index（指标）的复数形式，类似的名词还有matrix, vertex, 它们的名词分别为matrices和vertices。 3. Unless otherwise specified (Line 13): 除非另有规定，类似的还有unless otherwise noted，除非另有说明。Otherwise的用法如下。 1)You use otherwise after stating a situation or fact, in order to say what the result or consequence would be if this situation or fact was not the case. Make a note of the questions you want to ask. You will invariably forget some of them otherwise. Notes 2)You use otherwise before stating the general condition or quality of something, when you are also mentioning an exception to this general condition or quality. The decorations for the games have lent a splash of colour to an otherwise drab city. 3) You use otherwise to refer in a general way to actions or situations that are very different from, or the opposite to, your main statement. (WRITTEN) Take approximately 60mg up to four times a day, unless advised otherwise by a doctor. 4)You use otherwise to indicate that other ways of doing something are possible in addition to the way already mentioned. The studio could punish its players by keeping them out of work, and otherwise controlling their lives. Notes refer to (Line 14)：指的是…refer通常与to连用。用法如下 1) If you refer to a