Wikipedia

Variabel (matematika): Perbedaan antara revisi

Jelajahi riwayat secara interaktif
← Revisi sebelumnyaRevisi selanjutnya →
Konten dihapus Konten ditambahkan
VisualTeks wiki
Reindra (bicara | kontrib)
Peninjau
15.568 suntingan
lanjut
Reindra (bicara | kontrib)
Peninjau
15.568 suntingan
lanjut
Baris 26:
 
== Notasi ==
InDi mathematicsdalam matematika, singlenama-symbolnama nameslambang-tunggal foruntuk variablesvariabel areadalah the normnorma. Setelah Followingabad theke-17, 17thfilsuf centurydan Frenchmatematikawan philosopher and mathematicianPerancis, [[René Descartes]], lettersabjad-abjad atawal the beginning of the alphabetalfabet, e.g. misalnya ''a'', ''b'', dan ''c'' arebiasa commonlydigunakan useduntuk forkonstanta; constantsdan andakhir letters at the end of the alphabetalfabet, e.g.misalnya ''x'', ''y'', ''z'', anddan ''t'' aredigunakan commonlyuntuk used for variablesvariabel.<ref name=E004 /> InDalam printeddokumen [[mathematicsmatematika]], variablesvariabel anddan constantskonstanta are usually set in anbiasanya [[italiccetak miring|dicetak typemiring]]face.<ref>William L. Hosch (editor), ''The Britannica Guide to Algebra and Trigonometry'', Britannica Educational Publishing, The Rosen Publishing Group, 2010, ISBN 1615302190, 9781615302192, [http://books.google.co.uk/books?id=ad0P0elU1_0C&lpg=PA71&dq=elementary%20algebra%20letters%20alphabet%20constants%20variables&pg=PA71#v=onepage&q=letters&f=false page 71]</ref>▼
<!--
▲In mathematics, single-symbol names for variables are the norm. Following the 17th century French philosopher and mathematician, [[René Descartes]], letters at the beginning of the alphabet, e.g. ''a'', ''b'', ''c'' are commonly used for constants and letters at the end of the alphabet, e.g. ''x'', ''y'', ''z'', and ''t'' are commonly used for variables.<ref name=E004 /> In printed [[mathematics]], variables and constants are usually set in an [[italic type]]face.<ref>William L. Hosch (editor), ''The Britannica Guide to Algebra and Trigonometry'', Britannica Educational Publishing, The Rosen Publishing Group, 2010, ISBN 1615302190, 9781615302192, [http://books.google.co.uk/books?id=ad0P0elU1_0C&lpg=PA71&dq=elementary%20algebra%20letters%20alphabet%20constants%20variables&pg=PA71#v=onepage&q=letters&f=false page 71]</ref>
 
Cabang-cabang dan terapan-terapan tertentu matematika biasanya memiliki [[kesepakatan penamaan]] tertentu untuk variabel. Variabel-variabel yang memiliki peran atau arti serupa seringkali disajikan dalam abjad-abjad yang berdekatan. Misalnya, tiga sumbu [[ruang koordinat]] tiga dimensi telah disepakati sebagai ''x'', ''y'', dan ''z'', sedangkan [[variabel acak]] di dalam [[statistika]] biasanya ditulis ''X'', ''Y'', dan ''Z''. Di dalam fisika, nama-nama variabel ditentukan luas oleh [[besaran]] yang mereka wakili, namun terdapat berbagai kesepakatan yang muncul.
Specific branches and applications of mathematics usually have specific [[naming convention]]s for variables. Variables with similar roles or meanings are often assigned consecutive letters. For example, the three axes in 3D [[coordinate space]] are conventionally called ''x'', ''y'', and ''z'', while [[random variable]]s in statistics are usually named ''X'', ''Y'', ''Z''. In physics, the names of variables are largely determined by the [[physical quantity]] they describe, but various naming conventions exist.
 
Suatu kesepakatan yang kerap diikuti dalam [[peluang (matematika)|peluang]] dan [[statistika]] adalah penggunaan ''X'', ''Y'', dan ''Z'' untuk nama-nama [[variabel acak]], dan variabel-variabel itu digantikan oleh ''x'', ''y'', ''z'' untuk keluaran sampel atau pengamatan variabel-variabel acak itu. Lambang-lambang yang ditulis belakangan (abjad kecil) merupakan variabel matematika biasa. Lambang-lambang yang ditulis lebih awal (abjad besar) sebenarnya mewakili fungsi-fungsi dari ruang sampel (himpunan keluaran atomik) dari percobaan ke bilangan asli (biasanya demikian). Kesepakatan lainnya yang kadang-kadang digunakan di dalam statistika adalah pelambangan nilai-nilai populasi statistik tertentu menggunakan abjad kecil (atau besar) Yunani, sedangkan taksiran kuantitas-kuantitas berbasis sampel itu dilambangkan oleh abjad besar (atau kecil) dari alfabet latin.
A convention often followed in [[probability]] and [[statistics]] is to use ''X'', ''Y'', ''Z'' for the names of [[random variable]]s, with these being replaced by ''x'', ''y'', ''z'' for observations or sample outcomes of those random variables. These latter (lower case) symbols are ordinary mathematical variables. The former (upper case) symbols actually stand for functions from the sample space (set of atomic outcomes) of the experiment to (typically) the real numbers. Another convention sometimes used in statistics is to denote population values of particular statistics by lower (or upper) case Greek letters, with sample-based estimates of those quantities being denoted by the corresponding lower (or upper) case letters from the ordinary alphabet.
-->
 
== Pengenalan umum ==
Diperoleh dari "https://wiki-indonesia.club/wiki/Variabel_(matematika)"