Tabel integral: Perbedaan antara revisi

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{{about|mostly indefinite integrals in calculus|a list of definite integrals|List of definite integrals}}
{{Kalkulus| Integral}}
Integrasi adalah salah satu dari dua operasi dasar [[kalkulus]]; operasi yang lain adalah [[turunan|penurunan]] (derivasi). Pada penurunan, terdapat aturan yang menjadikan turunan dari [[fungsi|fungsi-fungsi]] kompleks dapat ditelusuri dari penurunan fungsi-fungsi komponennya yang lebih sederhana. Hal ini tidak terdapat dalam integrasi sehingga '''tabel integral''' biasanya amat berguna.
[[Integral|Integrasi]] merupakan operasi dasar dalam [[integral|kalkulus integral]]. Sementara [[turunan|diferensiasi]] mempunyai kaidah-kaidah mudah di mana turunan dari suatu [[Fungsi (matematika)|fungsi]] yang rumit dapat dihitung dengan melakukan diferensiasi dari fungsi komponen yang lebih sederhana, integrasi tidak demikian, sehingga table dari integral yang sudah diketahui seringkali sangat berguna. Berikut adalah sejumlah antiderivatif yang paling umum
 
Artikel ini memberikan tabel operasi integrasi yang umum dijumpai. Pada daftar integrasi di bawah ini, ''C'' menyatakan konstanta sebarang.
 
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== Perkembangan sejarah integral ==
A compilation of a list of integrals (Integraltafeln) and techniques of integral calculus was published by the German mathematician [[Meyer Hirsch]] in 1810. These tables were republished in the United Kingdom in 1823. More extensive tables were compiled in 1858 by the Dutch mathematician [[David de Bierens de Haan]]. A new edition was published in 1862. These tables, which contain mainly integrals of elementary functions, remained in use until the middle of the 20th century. They were then replaced by the much more extensive tables of Gradshteyn and Ryzhik. In Gradshteyn and Ryzhik, integrals originating from the book by de Bierens are denoted by BI.
 
Not all [[closed-form expression]]s have closed-form antiderivatives; this study forms the subject of [[differential Galois theory]], which was initially developed by [[Joseph Liouville]] in the 1830s and 1840s, leading to [[Liouville's theorem (differential algebra)|Liouville's theorem]] which classifies which expressions have closed form antiderivatives. A simple example of a function without a closed form antiderivative is ''e''<sup>&minus;''x''<sup>2</sup></sup>, whose antiderivative is (up to constants) the [[error function]].
 
Since 1968 there is the [[Risch algorithm]] for determining indefinite integrals that can be expressed in term of [[elementary function]]s, typically using a [[computer algebra system]]. Integrals that cannot be expressed using elementary functions can be manipulated symbolically using general functions such as the [[Meijer G-function]].
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== Daftar integral==
Daftar integral yang lebih detail dapat dilihat pada halaman-halaman berikut
 
* [[Daftar integral dari fungsi rasional]]
* [[Daftar integral dari fungsi irrasional]]
* [[Daftar integral dari fungsi trigonometri]]
* [[Daftar integral dari fungsi trigonometri inverse]]
* [[Daftar integral dari fungsi hiperbola]]
* [[Daftar integral dari fungsi hiperbola terbalik]]
* [[Daftar integral dari fungsi exponential]]
* [[Daftar integral dari fungsi logaritmik]]
* [[Daftar integral dari fungsi Gaussian]]
 
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Gradshteyn, Ryzhik, Jeffrey, Zwillinger's ''Table of Integrals, Series, and Products'' contains a large collection of results. An even larger, multivolume table is the ''Integrals and Series'' by Prudnikov, Brychkov, and [[Oleg Igorevich Marichev|Marichev]] (with volumes 1–3 listing integrals and series of [[elementary function|elementary]] and [[special functions]], volume 4–5 are tables of [[Laplace transform]]s). More compact collections can be found in e.g. Brychkov, Marichev, Prudnikov's ''Tables of Indefinite Integrals'', or as chapters in Zwillinger's ''CRC Standard Mathematical Tables and Formulae'', Bronstein and Semendyayev's ''Handbook of Mathematics'' (Springer) and ''Oxford Users' Guide to Mathematics'' (Oxford Univ. Press), and other mathematical handbooks.
 
Other useful resources include [[Abramowitz and Stegun]] and the [[Bateman Manuscript Project]]. Both works contain many identities concerning specific integrals, which are organized with the most relevant topic instead of being collected into a separate table. Two volumes of the Bateman Manuscript are specific to integral transforms.
 
There are several web sites which have tables of integrals and integrals on demand. [[Wolfram Alpha]] can show results, and for some simpler expressions, also the intermediate steps of the integration. [[Wolfram Research]] also operates another online service, the [http://integrals.wolfram.com/index.jsp Wolfram Mathematica Online Integrator].
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== Aturan integrasi dari fungsi-fungsi umum ==
 
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:# <math>\int {f'(x) f(x)}\,dx= {1 \over 2} [ f(x) ]^2 + C </math>
 
== Integral dari fungsi-fungsi sederhana ==
''C'' sering digunakan untuk [[arbitrary constant of integration]] yang hanya dapat ditentukan jika suatu nilai integral pada beberapa titik sudah diketahui. Jadi setiap fungsi mempunyai jumlah antiderivatif tidak terbatas.
 
Rumus-rumus berikut hanya menyatakan dalam bentuk lain pernyataan-pernyataan dalam [[tabel turunan]].
 
=== Fungsi rasional ===
{{main|Daftar integral dari fungsi rasional}}