An e such that for all x∈S, e*x=x*e=x
(chk) ∀a, ∃e such that a*e = e*a = a를 만족하는. 이 때 e가 항등원.
덧셈,addition
의
항등원
= 0 (∵ x+0=0+x=x)
곱셈,multiplication
의 항등원 = 1
...
각각
덧셈항등원,additive_identity
https://mathworld.wolfram.com/AdditiveIdentity.html
덧셈에 대한 항등원?
덧셈,addition
보통
영,zero
체,field
의 조건 중 하나?
https://en.wiktionary.org/wiki/additive_identity#English
https://en.wikipedia.org/wiki/Additive_identity
곱셈항등원,multiplicative_identity
https://mathworld.wolfram.com/MultiplicativeIdentity.html
보통
하나,one
체,field
의 조건 중 하나?
곱셈,multiplication
https://en.wiktionary.org/wiki/multiplicative_identity#English
맞는지?
행렬곱셈,matrix_multiplication
의 항등원?은 - chk
항등행렬,identity_matrix
=
단위행렬,unit_matrix
I
or
E
left identity
left identity element
https://proofwiki.org/wiki/Definition:Left_Identity
right identity
right identity element
https://proofwiki.org/wiki/Definition:Right_Identity
two-sided identity
two-sided identity element
https://proofwiki.org/wiki/Definition:Identity_Element
https://planetmath.org/leftidentityandrightidentity
...
left identity right identity
ADDIDENTITYHERE
비교:
역원,inverse_element
AKA 줄여서
identity
(저기엔
항등식,identity
의 뜻도 있음)
AKA
neutral element
mklink
항등함수,identity_function
Twins:
수학백과: 항등원
(https://terms.naver.com/entry.naver?docId=3338360&cid=47324&categoryId=47324)
https://planetmath.org/identityelement
- syn.
neutral element
https://en.citizendium.org/wiki/Identity_element
https://encyclopediaofmath.org/wiki/Identity_element
-
neutral element, unit element, zero element
Identity_element
https://ncatlab.org/nlab/show/identity element
- "sometimes also called
neutral element
"
https://groupprops.subwiki.org/wiki/Identity_element
https://everything2.com/title/identity element
identity_element
// forked from
항등식,identity
... 항등- (identity-) 관련으로 분류? see 항등식.
Up:
대수구조,algebraic_structure
군론,group_theory
?
항등성,identity
원소,element
Retrieved from http://tomoyo.ivyro.net/123/wiki.php/항등원,identity_element
last modified 2024-04-11 02:57:09