orthogonal basis

One of the purposes of the research of Hilbert space can be described abstractly as that any Hilbert space has standard orthogonal basis, and every element of Hilbert space can be said as linear combination of these family elements.

它研究的主要目的之一可以抽象地描述为任何一个可分Hilbert空间都有标准正交基，并且空间中的任何一个元素都可以表示成这些元素的线性和。

Shakedown analysis by using the element free Galerkin method with orthogonal basis and nonlinear programming

基于正交基无单元Galerkin法和非线性规划的安定分析方法

By means of congruent transformation in matrix, the method of transforming real quadratic form into standard form and the method of normal orthogonal basis are given in this paper.

借助矩阵的合同变换法，给出了化实二次型为标准形的方法、求标准正交基的方法，并给出了正定二次型判定定理的新证明。