1) nonnegative minimal solution
非负最小解
2) the minimal nonnegative solution
最小非负解
3) smallest solution
最小非零解
1.
On the smallest solution of the congruence equation xs_1+ys_2·k (mod n);
关于同余方程xs_1+ys_2·k(mod n)的最小非零解
4) nonnegative least
非负最小二乘法
1.
Both nonnegative least Squares regression and least Squares regression are used in the iterative regression to obtain the pure spectral and pure chromatographic profiles.
采用正交投影法获得初始迭代光谱，继采用非负最小二乘法和常规最小二乘法进行交替迭代，最终获得纯光谱和纯色谱向量。
5) least non-negative residue
最小非负剩余
6) non-negative least squares
非负最小二乘
1.
First,the number of groups of relaxation time is determined by non-negative least squares method(NNLS),and then the non-linear optimization is solved by DE algorithm.
通过将核磁共振弛豫信号多指数反演问题转化为一个带非负约束的非线性优化问题,先用非负最小二乘方法(NNLS)确定弛豫时间组分数,然后由差分进化(DE)算法求解优化问题。
补充资料：非想非非想处天
1.佛教语。即三界中无色界第四天。此天没有欲望与物质﹐仅有微妙的思想。
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