协变和逆变的区别对于张量的计算尤为重要，这往往会出现混合方差。
The distinction between covariance and contravariance is important for computations with tensors, which often have mixed variance.
研究团队计算出一个国家的疾病负担与它的国民的平均智力水平逆相关，即疾病负担越高，其智力水平就会比较低。
The inverse correlation that the group calculated between a country's disease burden and the average intelligence of its people is impressive.
您可以使用dc（这是一种逆波兰式计算器），或者 bc（这是一种用于数学运算的完整的脚本编程语言）。
You can use dc, a reverse-polish notation calculator, or bc, an entire scripting language for math.
在资金回收量的计算中，企业年金现值的逆操作，资本回收系数是年金现值系数的倒数。
In the calculation of the amount of capital recovery that the inverse operation of annuity present value, capital recovery factor is the reciprocal of annuity present value coefficient.
为此，本文阐述了大跨度箱形梁的预拱确定方法——逆迭代法，并以深圳会展中心箱形梁为实例说明计算过程。
Therefore, the paper expatiates counter-arched method of long span box beam-iteration, and the process of counter-arched calculation of Shenzhen conference and exhibition center.
这种方法首先由机构的逆解计算其力映射矩阵、雅可比矩阵。
Jacobian matrix and force-mapping matrix are calculated from the inverse-kinematics of the parallel-mechanism.
计算逆矩阵的工作量较大，但是通过逆矩阵的叉积我们可以简化计算。
The calculation of an inverse matrix is a lot of work, but by using the properties of vector cross products we can simplify the calculations.
提出了一种用于双框架控制力矩陀螺的梯度型伪逆控制律，介绍了控制律的原理与计算方法。
The design of a gradient singularity avoidance pseudo-inverse control law used for double gimbal control moment gyro (DGCMG), its principle and calculation were introduced.
对称的特性也可用来节省矩阵求逆中或求解方程中所需要的一部分计算量。
The property of symmetry can also be used to save a part of the computational effort required for matrix inversion or for a solution of equations.
这就意味着对每一小段，都必须计算新的逆运动学解。
It means computer must complete a counter—calculation for every segment.
把矩阵分析中的L -D分解算法运用到该算法中以避免计算矩阵的逆，从而改善了算法的稳定性和精度。
The L-D factorization was also applied into Kalman filter to avoid computing the inverse of matrix, so its stability and precision is improved.
在安全校正计算中，通过灵敏度分析选择出有效控制变量并由伪逆法直接求得其调整量。
In the safety correcting computation, effective control variables are selected by sensitivity analysis and their adjusted values are found directly by the pseudo-inverse method.
同时，利用分层神经网络代替视觉空间到任务空间的映射，避免了复杂的逆矩阵计算。
Meanwhile a HCMAC neural network is fabricated to replace the complex calculation of the inverse Jacobian mapping.
与传统的数据长度补零逆傅里叶变换方法相比，在相同的采样分辨率条件下，该方法能有效减小计算量。
Compared with traditional inverse Fourier transform method, which used zeros padding method, at the same condition of sampling resolution, the method proposed could decrease the calculation load.
本文推导了一种特殊形式的广义逆分块计算公式，并探讨了它在测量平差中的初步应用。
This paper is devoted to the gaining of a formula for calculating the generalized inverse of the block matrix which has a special shape and discussing its application in survey adjustment.
但计算逆矩阵和岭脊的选择是广义岭估计的两个难点。
It is difficult to compute inverse matrix and select ridges.
本文以梁元结构为例，推导满足结构静、动力特性的结构逆设计计算方法。
Taking a beam element structure for example, this paper has deduced a calculating method for structures' inverse design, which satisfied static and dynamic characteristics of structures.
用简易坐标投影法计算了其位置分析的正、逆解析解。
The forward and inverse analytical solutions of its positional analysis were computed by the use of simple and easy coordinative projection.
用计算加权系数的方法代替了原来的计算加权矩阵，从而避免了求解滤波误差方差阵的逆矩阵。
The weight matrix is replaced by using weight coefficient, and avoids calculating inverse matrix of the error variance matrix.
由于不需计算灵敏度逆矩阵和采用松驰技术，本算法具有计算速度快、收敛性能好和占用空间少的优点。
Since it does not need to calculate sensitivity matrix and the relaxation technique is used, this algorithm is advantageous to save computational time and memory space.
对计算结果的对比分析表明，用感热通量的非局地多尺度湍流计算方法能计算出感热通量的逆梯度输送，也能计算出青藏高原近中性层结条件下明显的感热通量。
Analysis of the calculations shows that the first method is responsible for the upgradient transport of sensible heat and for the higher fluxes in the near-neutral stratification over the Plateau.
提出一种将逆编译技术应用于计算机病毒分析的方法。
Suggests a method in which the decompilation technique is applied in computer virus analysis.
该算法比已有的块三对角矩阵求逆算法的计算复杂度和计算时间低。
The computing complexity and computing time of this algorithm is lower than that of existed algorithms.
本文简要介绍神经网络与神经计算机，神经元模型，层状网络结构，误差逆传播算法及其在地球物理反演中的应用。
This paper gave a brief review on neural nets and neural computers, neuron models, layered network structures, error back-propagation algorithm and its application to geophysical inversion.
而方差和协因数有紧密联系，该文着重讨论协因数的统一变量简明计算及协因数的求逆方法。
While the covariance and association factor are closely linked, this article focuses on concise calculation of the unity of the variable and inverse methods of association factor.
本文提出一种新的用计算机解心电逆问题的方法。
This paper presents a new method of ECG inverse solution by using computer software.
文中还给出了此算法在逆散射成像中应用的计算机模拟实验结果。
In the end of this paper the results of computerized simulated experiments in inverse scattering imaging are given.
为了进行电源系统分析和设计，本文建立了电压模式和峰值电流模式控制的逆变弧焊电源数学模型，并用计算机进行分析。
In order analyze and design the power supply system, the system models which control by two above-mentioned control modes are established and analyzed by computer.
为了进行电源系统分析和设计，本文建立了电压模式和峰值电流模式控制的逆变弧焊电源数学模型，并用计算机进行分析。
In order analyze and design the power supply system, the system models which control by two above-mentioned control modes are established and analyzed by computer.
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