English Dictionary

inverse

/ɪnˈvɝs/

noun

An inverted state: a state in which something has been turned (properly) upside down or (loosely) inside out or backwards. / The reverse of any procedure or process.

The inverse of a matrix can be found by using the adjugate matrix.

意味（1）

An inverted state: a state in which something has been turned (properly) upside down or (loosely) inside out or backwards.

Cowgirl is the inverse of missionary.

意味（2）

The reverse of any procedure or process.

Uninstalling is the inverse of installation.

意味（3）

(mathematics) A ratio etc. in which the antecedents and consequents are switched.

The inverse of a:b is b:a.

意味（4）

(geometry) The result of a circle inversion; the set of all such points; the curve described by such a set.

The inverse P‘ of a point P is the point on a ray from the center O through P such that OP × OP‘ = r² or the set of all such points.

意味（5）

(logic) The non-truth-preserving proposition constructed by negating both the premise and conclusion of an initially given proposition.

Anything that isn't a dog doesn't go to heaven is the inverse of All dogs go to heaven. More generally, ¬ mathsf p→¬ mathsf q is the inverse of mathsf p→ mathsf q and is equivalent to the converse proposition mathsf q→ mathsf p.

意味（6）

(addition) The negative of a given number.

The additive inverse of x is -x, as x-x=0, as 0 is the additive identity element.

意味（7）

(multiplication) One divided by a given number.

The multiplicative inverse of x is x⁻¹, as x⨯x⁻¹=1, as 1 the multiplicative identity element.

意味（8）

(functions) A second function which, when combined with the initially given function, yields as its output any term inputted into the first function.

The compositional inverse of a function f is f⁻¹, as ff⁻¹= mathit I, as mathit I is the identity function. That is, ∀x,f(f⁻¹(x))= mathit I(x)=x.

意味（9）

(category theory) A morphism which is both a left inverse and a right inverse.

意味（10）

(card games) The winning of the coup in a game of rouge et noir by a card of a color different from that first dealt; the area of the table reserved for bets upon such an outcome.

If the player... be determined to try his luck on the inverse, he must place his money on a yellow circle, or rather a collection of circles, situated at the extremity of the table.

意味（11）

(linguistics, Kiowa-Tanoan) A grammatical number marking that indicates the opposite grammatical number (or numbers) of the default number specification of noun class.