projective

a. 射影的, 投影的, 凸出的, 突出的, 投射的 [计] 投影的

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其它

词形变化

projectives 复数 projectives more projective 比较级 most projective 最高级

释义与例句

n.
  1. 1.

    An assessment test that presents subjects with some sort of stimulus to which they react by projecting or imagining details.

    心理学
  2. 2.

    A projective member of a category.

    数学
  3. 3.

    A statement about a conditional or potential state of affairs, as opposed to one about a situation that actually exists or existed.

    语言学
adj.
  1. 1.

    projecting outward

  2. 2.

    of, relating to, or caused by a projection

  3. 3.

    Of or related to projective geometry:

    Invariant under projective transformations.

    数学
  4. 4.

    Of or related to projective geometry:

    Defined in or inhabiting a projective space.

    数学
  5. 5.

    In a technical sense, general (but not necessarily so general as to be free); involving such objects:

    Such that there is another (left) R-module N with M⊕N a free R-module. Equivalently, projective in the category of modules (see below).

    数学
  6. 6.

    In a technical sense, general (but not necessarily so general as to be free); involving such objects:

    Such that, given an epimorphism e:E→X and morphism f:P→X, f factors through e; that is, there exists a morphism ̃f:P→E with e∘̃f=f.

    数学 计算机 工程
  7. 7.

    In a technical sense, general (but not necessarily so general as to be free); involving such objects:

    Such that every epimorphism from a profinite group onto G has a right inverse which is a homomorphism.

    数学
  8. 8.

    In a technical sense, general (but not necessarily so general as to be free); involving such objects:

    Such that every object in the resolution is projective.

    数学

相关短语

词源

Formed by the suffixation of prōiect- (the perfect passive participial stem of the Classical Latin prōiciō, whence the English verb project) with the English -ive, forming project + -ive; however, compare the post-Classical Latin prōiectīvus (“relating to purging”).

来源:wiktionary