Sifat Lapangan pada Bilangan Kompleks
DOI:
https://doi.org/10.15575/ja.v3i1.1498Abstrak
Dalam teori gelanggang dibahas sifat-sifat lapangan (field)  pada suatu sistem bilangan. Suatu gelanggang komutatif L disebut lapangan jika untuk setiap a∈L dan a≠0 terdapat a^(-1)∈L, sehingga aa^(-1)=a^(-1) a=1. Diantaranya adalah sifat lapangan pada sistem bilangan kompleks. Bilangan kompleks adalah bilangan yang berbentuk a + bi atau a + ib, a dan b bilangan real dan i^2= –1. Notasi bilangan kompleks dinyatakan dengan huruf C. Dapat dibuktikan bahwa bilangan kompleks memiliki sifat-sifat lapangan yang memenuhi 10 sifat,  yaitu sifat tertutup penjumlahan dan perkalian, komutatif penjumlahan dan perkalian, assosiatif penjumlahan dan perkalian, memiliki identitas penjumlahan dan perkalian, memiliki balikan (invers) penjumlahan dan balikan perkalian.
Referensi
Herstein, I.N. (1975). Topics in Algebra. 2¬^nd ¬ Ed. New York : John Wiley and Sons.
Gilbert, Jimmie & Gilbert, Linda. (2000). Elements of Modern Algebra. United Satates of America : Brooks/Cole.
Muchlis, Ahmad & Astuti, Pudji. (2007). Aljabar I. Jakarta : Universitas Terbuka.
Unduhan
Diterbitkan
Terbitan
Bagian
Lisensi
Authors who publish in Jurnal Analisa agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
3.Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).