矩阵

• They may be conveniently expressed in the following matrix form .
  它们可以方便地表示成下列矩阵形式。
• The 90 keys of the keyboard must be organized as a 9 by 10 matrix .
  键盘的90个键必须组成910的矩阵。
• A matrix consisting of one column or one row is known as a vector .
  由一列或一行构成的矩阵通称为向量。
• Triangular matrices, in particular, are usually quite tractable .
  特别地，三角矩阵常是十分易于驾驭的。
• This matrix is symmetric and banded, the band being equal to four .
  这个矩阵是对称的且是带状的，带宽等于四。
• This combination process is called the assemblage of stiffness matrices .
  这种组合的过程称为刚度矩阵的装配。
• Matrix formulations are ideally suited to the storage facilities of computers .
  矩阵列方程最适于计算机存储。
• The fundamental circ matrix is one example of a reduced circ matrix .
  基本圈矩阵是简化广义圈矩阵的一个例子。
• It forms a flexibility matrix which, when inverted, gives (so＊) .
  当形成一个柔度矩阵求逆时，它给出（So）。
• the function is called the transition matrix for the system.
  函数称为系统的转移矩阵。