如果泥水工人水平不错，而且磨瓷砖的工具比较好的话，就应该毫不犹豫地选择磨45度角对角的做法。
If the workers level pretty good, and the tool grinding ceramic tile good words, he should not hesitate a moment to prefer mill 45 degree Angle of the practice of the diagonal.
浮点数表示法，含部份换轴之高斯消去法，使用矩阵大小之计算尺度调整，带状及三角对角系统，LU分解。
Floating point representation, Gaussian elimination with partial pivoting, scaling of computations with matrix size, banded and tri-diagonal systems, LU decomposition.
绵羊与山羊都有一对角。
反射对称可以是任意方向的，垂直的，对角线的，或是界于这两者之间的任一角度。
Reflection symmetry can take on any direction: vertical, diagonal, and anything in between.
在和对角线的-背面的三角形的背面留下的边细分对角线的区段离别的。
Subdivide the diagonal section at the back-left side of the triangle with one diagonal-back parting.
离散后的三对角线性代数方程组用adi方法求解。
The discretized tri-diagonal linear algebraic equations are solved with ADI method.
把一张正方形的纸沿着对角线折成三角形，然后再对折一次。
Fold a piece of squared paper along the diagonal into a triangle, and fold into another triangle.
本文基于反对称矩阵的谱集，采用正交相似变换，得到一类具有零对角的符号模式矩阵具有唯一惯量的结论。
Based on the spectral set of skew-symmetric matrix, the result that a class sign pattern matrix with zero diagonal is unique inertia was proved by using orthogonal similarity transformation.
分离左冠状动脉左前降支，第二对角支远端结扎。
Left descending arteries were ligated at the distal side of the second diagonal branch.
本文讨论了一类特殊的三对角线性方程组的解法，这种解法既是稳定的，运算量又较少。
This paper proposes a solving process of the special triple diagonal systems. And the process is proven to be stable and easy to do with less calculation.
即内层迭代是将物料平衡方程和相平衡方程联立，化为三对角矩阵形式，由之解出各板液相组成后，通过泡点计算法求定各板新的温度和相平衡常数。
The internal iterative calculation is to correlate the equations of mass and phase equilibrium into a triple diagonal matrix from which the liquid compositions can be found out.
本文介绍缔合物系精馏过程模拟计算的三对角矩阵法。
The tridiagonal matrix method is introduced for the analogue computation in the rectification process of associated system.
在保持了该算法快速收敛优点的同时，利用相关矩阵块三对角的特殊结构，降低了该算法的计算复杂度。
This new method reduces the computational complexity by using the block tridiagonal structure of the input sample correlation matrix, and at the same time keeps the property of fast convergence.
讨论了一类块三对角矩阵的求逆问题。
The inverse of a class of block tridiagonal matrices is investigated.
本文讨论了一类由五个特征值和相应特征向量构造实对称五对角矩阵的特征值反问题。
In this paper, a kind of inverse eigenvalue problem which is the reconstruction of real symmetric five-diagonal matrix by five eigenvalues and corresponding eigenvectors is proposed.
于是，他来到宙斯那里，请求给他加上一对角。
对角矩阵及三角矩阵之特征值，相似矩阵，由QR分解计算特征值，主特征值之迭代估算。
Eigenvalues of diagonal and triangular matrices, similarity transforms, calculation of eigenvalues from QR decomposition, iteratively estimating the leading eigenvalue.
本文给出了严格对角占优周期三对角矩阵逆元素上界和下界的估计，改进了一些学者近期的研究结果。
In this paper, we give the estimates for the upper and lower bounds on the inverse elements of strictly diagonally dominant periodic tridiagonal matrices, and improve the latest findings.
牛，绵羊和山羊都有一对角。
由离散解得到的非对称线性方程组，对于QPNS采用块三对角法，对于FNS采用GMRES算法。
The nonsymmetric and linear equations from the discrete solution are solved by using block tridiagonal systems for the QPNS equations and by GMRES algorithm for the FNS equations.
将奇异摄动方法应用于一个精馏塔，得到具有三对角结构的动态简化模型。
By applying singular perturbation to a distillation column, an order-reduced dynamic model with tridiagonal structure is obtained.
差分后形成的大型七对角线性方程组，可采用逐次线松弛方法迭代求解。
Line Successive Over Relaxation (LSOR) can be used as one method to calculate the equation.
针对循环或者拟循环三对角方程组，仿照追赶法的思想，给出了一种求解这两类方程组的追赶算法。
Based on the idea of chasing method, a new algorithm is developed to solving the circular and quasi-circular tridiagonal systems in this paper.
根据三对角矩阵的特点，给出一种利用解线性方程组的方法求三对角矩阵的逆矩阵的算法。
In this paper, an algorithm for finding the inverse matrix of tridiagonal matrix by solving systems of linear algebraic equations is proposed.
由块三对角矩阵的LU分解，得到了其逆矩阵块元素的显式表达式。
With the LU decomposition of the block tridiagonal matrix, an explicit expression of the block inverse elements is obtained.
利用严格对角占优和三对角矩阵的某些特性，推导出严格对角占优三对角矩阵逆元素的统一估计式。
The estimation on the inverse elements of strictly diagonally dominant tridiagonal matrix is established; in this estimation, the nonnegative condition of matrix elements is moved.
画一条对角线，把正方形分成两个三角形。
Draw a diagonal line to divide the square into two triangles.
本文根据分块循环三对角矩阵的特殊分解，给出了求解分块循环三对角方程组的一种新算法。
A new algorithm of solving circulant block tridiagonal systems is proposed, which is based on the special factorization of circulant block tridiagonal matrix.
通过对角焊缝连接设计的分析讨论，提出一个值得探讨的问题，并就角焊缝连接设计给出一些有益的建议。
By analyzing and discussing design of fillet weld connection, a comment is presented and some useful Suggestions on design of fillet weld connection are given.
通过对角焊缝连接设计的分析讨论，提出一个值得探讨的问题，并就角焊缝连接设计给出一些有益的建议。
By analyzing and discussing design of fillet weld connection, a comment is presented and some useful Suggestions on design of fillet weld connection are given.
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