查询词典 matrices

The main topics are: determinants, matrices, rank of a matrix, vector spaces, linear equations, eigenvalues and eigenvectors, quadratics.

本课程的基本内容有行列式、矩阵、向量空间、线性方程组、矩阵的特征值与特征向量、二次型。

It is studied factorizing a matrix over quaternion field to the product of two self-conjugate matrices. And some useful results are obtained.

摘要研究了四元数矩阵分解为两个自共轭矩阵乘积，其中有一个是非奇异阵的条件，得到了一些有用的结果。

Concluding and summarizing the real representation of quaternion matrices and its characters in this article.

1，总结归纳了四元数矩阵的实表示及其性质

This paper concludes and summarizes the production the real representation of quaternion matrices, and extends something in this article.

本文对四元数矩阵的实表示的相关研究成果进行了总结和归纳，并进行了一些推广工作

The purpose of this paper is to estimate the eigenvalues of square quaternion matrices.

估计定理，在估计定理的基础上提出了对角线元素是实数的四元数方阵的特征值。等式

The main topics are: determinants, matrices, rank of a matrix, linear equations, eigenvalues and eigenvectors.

本课程的基本内容有行列式、矩阵、线性方程组、矩阵的特征值与特征向量。

In chapter 5, we investigate the iterative methods for solving the linear systems by the homotopy perturbation technique, and the numerical rank of a matrix in the matrix computations are considered, especially the ill-conditioned matrices.

本文第五章中我们首先利用同伦摄动技巧考察了线性方程组的迭代解法。其次，从数值计算的角度考察了矩阵的数值秩问题，尤其是病态矩阵。

Sensory Integration Scale,Stroop Test,Wechsler Memory Scale and Ravin's Standard Progressive Matrices were conducted among2826 12-year-old children diagnosed as ADHD.

对282例符合美国精神障碍诊断与统计手册第4版ADHD诊断标准的门诊儿童，进行感觉统合功能和执行功能评定，对结果进行相关性分析。

Result:The grades of the abilities of mass motor and balance were positively correlated with the A reaction time,total reaction time of Stroop Test,and negatively correlated with the score of down-reciting in Wechsler Memory Scale.The standard score of lack of learning ability or mal-coordination was positively correlated with the D reaction time,total reaction time and the number of D errors and total errors in Stroop Test,and positively correlated with the standard grade in Ravin's Standard Progressive Matrices.The negative correlation was existed between the grade of touch excessive defense,emotionalinstability and the errors in C part and the reaction time in interference of word color in the Stroop Test.

结果：感觉统合功能量表中，大肌肉及平衡能力的等级评分与Stroop测验的A反应时、总反应时呈正相关，与韦氏记忆中倒背数字得分呈负相关；触觉过度防御及情绪不稳的等级评分与Stroop测验的C错误数和色干扰呈负相关；本体感不佳、身体协调不良的等级评分与Stroop测验的C错误数和总错误数呈负相关；学习能力发展不足或协调不良的等级评分与Stroop测验的D反应时、总反应时、D错误数、总错误数以及瑞文标准推理测验的标准等级分呈正相关；大年龄的特殊问题的等级评分与Stroop测验的C错误数、D错误数、总错误数呈负相关。

Methods: The neuropsychological characters of 95 children with ADHD,40 normal children and . their parents were investigated with self-made inventory questionnaire,Wechsler Intelligence Scale for Children-Chinese Version,Ravin"s Standard Progressive Matrices, Achenbach Child Behavior Checklist, Eysenck Personality Questionare-for Children, Piers-Harris Children"s Self-concept Scale, Sensory Integration Scale,Family Enviroment Scale — Chinese Version and Symptom Checklist.

采用自制的一般情况调查问卷、韦氏儿童智力量表、瑞文标准推理测验、Achenbach儿童行为量表、艾森克个性问卷、Piers-Harris儿童自我意识量表、感觉统合检核表、家庭环境量表—中文版、症状自评量表(SCL-90)及儿童青少年心理测试软件分别对95名ADHD儿童及40名正常儿童进行研究。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。