... 二次规划 quadratic programming 平方和 quadratic sum 热阴极四极管quadrature正交，90度相移，90度相位差；求面积，求积分 quadratron ...
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residual quadratic sum 残差平方和
weighted quadratic sum 加权平方和
quadratic sum resolution 平方和分解
quadratic sum decomposition 平方和分解
weighted quadratic sum meth-od 平方加权和法
sum of quadratic ratios 二次比式和
sum of quadratic dispersion 离差平方和
direct sum of quadratic forms [数] 二次型的直和
By introducing theories of matrix, this paper presents a calculation method for the rank of the quadratic form in quadratic sum resolution.
引用矩阵的有关理论，给出了平方和分解式中二次型秩数的计算方法。
A new formula is obtained to find out regression coefficients, based on the fact that the quadratic sum of distance between line and spots in minimum.
由点线距的平方和最小，得出一种求回归系数的新公式。
At first, noise is reduced by median filtering. Secondly, the DQS (Difference Quadratic Sum) algorithm is presented to restrain the background noise and enhance the targets.
该方法的特点是：首先采用中值滤波来减小噪声，并提出了差方和算法，用以抑制背景噪声并对目标增强；
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