需要注意的是 ：这里的对角线元素不一定非负(non-negative)，非对角线元素也不一定非正(non-positive)，但是整个矩阵仍然是半正定(positive semidefinite)(Levin的paper [4]里有证明)，当然也是对称阵。
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non-positive metric 非正度规
non-positive compressor 非容积式压缩机
non-positive displacement 非正排量式
non-positive drive 非正位移驱动装置
non-positive kernel 非正定核
Non-positive Tensor 非正定张量
non-positive meaning 意义的不确定性
Totally non-positive matrix 全非正矩阵
Non- Positive Kernel Machine Regression 非正定核的机器回归方法
If what happens to me is non-positive but I find something positive about the situation, then I'm controlling my feelings and choosing not to be unhappy.
如果发生在我身上的事情是消极的但是在这种情况下我找到了某些积极的事情，那么我就可以控制我的情感并选择不要不幸福。
It doesn't need the variational principle and can be applied to solve non-positive or positive definite partial differential equations with arbitrary variable coefficient.
该方法不用一般的变分原理，可适用任意变系数正定和非正定偏微分方程。利用这一方法得到一个新的八节点四边形平面应力单元。
According to statistical analysis on Shanghai stock index, the distribution of the rate of return is non-positive skewed, and there exists an autoregressive heteroskedasticity in the rate of return.
通过对上证指数的统计分析表明，上证指数的收益率分布表现出非正态性，并存在自回归条件异方差的特征。
But she came to Dress for Success, a non-profit group that helps women get back into the workforce by outfitting them with a business suit and a positive attitude.
VOA: standard.2009.12.25
He also said the steps such as Turkey's continuing dialogue with the non-muslim communities as well as its relationship with Armenia are all included in the report in positive terms.
VOA: standard.2009.10.15
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