Conical combination

In the plane, the conical hull of a circle passing through the origin is the open half-plane defined by the tangent line to the circle at the origin plus the origin.

Given a finite number of vectors $x_1, x_2, \dots, x_n\,$ in a real vector space, a conical combination, conical sum, or weighted sum of these vectors is a vector of the form

where the real numbers $\alpha_i\,$ satisfy $\alpha_i\ge 0.$

The name derives from the fact that a conical sum of vectors defines a cone (possibly in a lower-dimensional subspace).

单词	Nonnegative combination
释义	Nonnegative combination 英语百科 Conical combination Given a finite number of vectors $x_1, x_2, \dots, x_n\,$ in a real vector space, a conical combination, conical sum, or weighted sum of these vectors is a vector of the form where the real numbers $\alpha_i\,$ satisfy $\alpha_i\ge 0.$ The name derives from the fact that a conical sum of vectors defines a cone (possibly in a lower-dimensional subspace).
随便看	Methyltestosteronum的意思 Methyltestostreone的意思 methyl tetradecanoate的意思 Methyltetrahydrofolate的意思 Methyltetrahydrofolate Homocysteine Methyltransferase的意思 methyltetrahydrofolates的意思 methyl tetra hydrofolic acid的意思 methyltetrahydrofolic acid的意思 methyl tetrahydrofolic acid的意思 Methyltetrahydrofuran的意思 methyltetrahydroharman的意思 methyl tetrahydronicotinic acid的意思 methyl tetrahydroquinoline的意思 methyltetramethylglucoside的意思 methyl tetramethylglucoside的意思 methyltetrazene的意思 methylthalicberine的意思 Methyltheobrmine的意思 methyl theobromine的意思 Methyltheobromine的意思 methylthiapurine ribonucleoside的意思 methylthiazol的意思 methylthiazole 5 acetic acid的意思 methylthiazoleethanol的意思 methyl thiazolyl tetrazolium的意思

Nonnegative combination

Conical combination