释义 |
poristic, a. Math.|pɒˈrɪstɪk| [ad. Gr. ποριστικός able to procure, f. πορίζειν: see porism.] Relating to a porism, porismatic; having the quality of rendering a determinate problem indeterminate.
1704J. Harris Lex. Techn. I, Poristick Method, in Mathematicks, is that which determines when, by what way, and how many different ways, a Problem may be resolved. 1890Cent. Dict. s.v., Poristic points, a set of points of the number which usually suffice to determine a curve of a given order, but so situated that an indefinite number of such curves can be drawn through them. So poˈristical a. rare—0.
1828Webster, Poristic, Poristical. Hence in later Dicts. |