Aljebra

Aljebra (kutoka katika Kiarabu "al-jabr", inamaanisha "muungano wa sehemu zilizovunjika") ni tawi mojawapo la hisabati pamoja na nadharia ya namba, jiometri na uchambuzi.

Sifa maalumu ya aljebra ni kwamba inatumia ishara kutatua matatizo ya hisabati, kwa mfano kupiga hesabu hata kama namba fulani ndani yake haijulikani.

Katika muundo wake wa kiujumla, aljebra ni somo la ishara za kihisabati na sheria za kuendesha ishara hizo; ni uzi unaounganisha karibu matawi yote ya hisabati. Inajumuisha kila kitu kutoka kwenye misingi ya kutatua milinganyo.

 Mfano mmoja ni mlinganyo ufuatao ambapo  ni kutofautiana:

Marejeo

 Donald R. Hill, Islamic Science and Engineering (Edinburgh University Press, 1994).
 Ziauddin Sardar, Jerry Ravetz, and Borin Van Loon, Introducing Mathematics (Totem Books, 1999).
 George Gheverghese Joseph, The Crest of the Peacock: Non-European Roots of Mathematics (Penguin Books, 2000).
 John J O'Connor and Edmund F Robertson, History Topics: Algebra Index. In MacTutor History of Mathematics archive (University of St Andrews, 2005).
 I.N. Herstein: Topics in Algebra. ISBN 0-471-02371-X
 R.B.J.T. Allenby: Rings, Fields and Groups. ISBN 0-340-54440-6
 L. Euler: Elements of Algebra , ISBN 978-1-899618-73-6


Viungo vya nje

 Khan Academy: Conceptual videos and worked examples
 Khan Academy: Origins of Algebra, free online micro lectures 
 Algebrarules.com: An open source resource for learning the fundamentals of Algebra
 4000 Years of Algebra , lecture by Robin Wilson, at Gresham College, October 17, 2007 (available for MP3 and MP4 download, as well as a text file).


Jamii:Hisabati