逆计算

Computing inverse matrix, a unit entrainment in the matrix behind the matrix, and then in front of it is processed into a matrix, diagonal matrix, the latter matrix that is the inverse matrix.

详细说明：计算逆矩阵，在矩阵后面夹带一个单位矩阵，然后把前面那一个矩阵处理成对角线单位矩阵，后面的那个矩阵就是逆矩阵。

First, we calculate out the zero point in a simple numeral method, then we get the phase according to the fact that the symbol of phase changed is opposite in the positive-slope and the negative-slope of triangle wave. This method has the following characteristics: easy to calculate, simple to realize and high precision.

首先用简单的数值方法较准确的计算出零点时刻；进而根据三角波扫频时正程和逆程相位变化符号相反的特性，巧妙的完成了相位计算，该方法具有计算简单、实现方便、准确度高等特点。

In this paper,discussions are made on the weighted Moore-Penrose inverses of the morphisms with universal factorization in the preadditive category.

的范畴中态射的Moore-Penrose逆，给出具有满单分解态射Moore-Penrose逆存在的充要条件以及计算公式。

On the one hand, the linear interpolation in plane makes it easy to separate the three-dimensional null subspace corresponding to rigid body motions, hence what is left to do is just to compute the inverse of a symmetric definite submatrix numerically.

在物理坐标系中的线性插值函数便于将三个刚体模式分离出来，从而只需计算对称正定子阵的逆，避免了求广义逆的数值困难；在参考坐标系中的高阶插值函数则可保持原平面弹性单元的列式方式。

Firstly a fast direct computing 3kP algorithm in field was deduced,which only needed one inversion;the new double base number chain based on 1/2 and 3 could be integrated with high-speed direct computing 3kP and halving algorithm.Scalar multiplication based on the new chain only employed point addition,halving algorithm,triplication and direct...

在底层域推导出直接计算3kP的快速算法，该算法只需一次求逆；新设计的以1/2和3为基的双基数编码可结合高效的直接计算3kP和折半运算，基于该双基数编码的标量乘算法只涉及到点加运算、折半运算、三倍点和直接计算3kP，底层域运算复杂性得到降低，在NIST推荐的椭圆曲线上比Dimitrov算法效率提高70%以上，比Wong方法提高10%以上。

In this paper, quantitative analysis on exchange between inverter unit of DVR and grid is made when voltage temporarily drops. Then it studys detailedly the relationship of output voltage and power amang inverter unit of DVR ,grid and load.Finally Matlab simulations of all the compensation method are made.

本文定量分析计算电网电压暂降时DVR 逆变单元与电网的功率交换情况，详细研究逆变单元在各种补偿策略下的输出电压和有功功率与故障前后电网电压、负载电压和参考相量的具体关系，最后通过Matlab 仿真研究各补偿方法。

Then it studys detailedly the relationship of output voltage and power amang inverter unit of DVR ,grid and load.Finally Matlab simulations of all the compensation method are made.

本文定量分析计算电网电压暂降时DVR 逆变单元与电网的功率交换情况，详细研究逆变单元在各种补偿策略下的输出电压和有功功率与故障前后电网电压、负载电压和参考相量的具体关系，最后通过Matlab 仿真研究各补偿方法。

In the Harn digital signature scheme,the signatory need not compute any inverses and the person who verifies the key only need compute two modular exponents, so the computation work is less in comparison with other schemes based on discrete logarithm.

Harn数字签名方案中，签名者不需计算任何逆，验证者只需计算 2个模指数，因此相对于其它基于离散对数数字签名方案计算量大大减少。

This paper proposes an off-line iterative algorithm based on signal reconstruction technique for generation of nonsinusoidal three-phase PWM waveforms.

在三相PWM逆变器中注入零序谐波电压分量是提高逆变器直流侧电压利用率的一种有效方法，提出一种基于波形重构技术的迭代计算方法，用以产生三相鞍形PWM波形数据。

HCS++ CH3 agrees with a linearly extrapolated threshold at 10.99 ?b 0.04 eV and a predicted dissociation mechanism that c-C2H4S+ isomerizes to CH3CHS+ before dissociating to HCS++ CH3 supports the experimental results.

另一方面，形成HCS++ CH3解离通道线性拟合的门槛値10.99 ± 0.04 eV与G3计算値11.05 eV一致，释放的平均动能与统计计算値相当吻合，以理论计算推测解离途径也显示此解离通道没有逆反应能障。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。