4 (عدد) (Urdu Wikipedia)

Analysis of information sources in references of the Wikipedia article "4 (عدد)" in Urdu language version.

refsWebsite
Global rank Urdu rank
3rd place
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6,508th place

books.google.com

  • Gregory Fiore (1 Aug 1993). Basic mathematics for college students: concepts and applications (بزبان انگریزی). HarperCollins College. p. 162. ISBN:978-0-06-042046-8. The smallest composite number is 4.
  • Kaplan Test Prep (3 Jan 2017). SAT Subject Test Mathematics Level 1 (بزبان انگریزی). Simon and Schuster. p. 289. ISBN:978-1-5062-0922-7. An integer is divisible by 4 if the last two digits form a multiple of 4.
  • Andrew Hodges (17 May 2008). One to Nine: The Inner Life of Numbers (بزبان انگریزی). W. W. Norton & Company. p. 249. ISBN:978-0-393-06863-4. 2 ↑↑ ... ↑↑ 2 is always 4
  • Foster Earl Grossnickle; John Reckzeh (1968). Discovering Meanings in Elementary School Mathematics (بزبان انگریزی). Holt, Rinehart and Winston. p. 337. ISBN:9780030676451. ...the smallest possible number of faces that a polyhedron may have is four
  • Foster Earl Grossnickle; John Reckzeh (1968). Discovering Meanings in Elementary School Mathematics (بزبان انگریزی). Holt, Rinehart and Winston. p. 337. ISBN:9780030676451. ...face of the platonic solid. The simplest of these shapes is the tetrahedron...
  • David Hilbert; Stephan Cohn-Vossen (1999). Geometry and the Imagination (بزبان انگریزی). American Mathematical Soc. p. 143. ISBN:978-0-8218-1998-2. ...the tetrahedron plays an anomalous role in that it is self-dual, whereas the four remaining polyhedra are mutually dual in pairs...
  • Horne Jeremy (19 May 2017). Philosophical Perceptions on Logic and Order (بزبان انگریزی). IGI Global. p. 299. ISBN:978-1-5225-2444-1. The Klein four-group is the smallest noncyclic group,...
  • Ari Ben-Menahem (6 Mar 2009). Historical Encyclopedia of Natural and Mathematical Sciences (بزبان انگریزی). Springer Science & Business Media. p. 2147. ISBN:978-3-540-68831-0. (i.e. That there are maps for which three colors are not sufficient)
  • Jason J. Molitierno (19 Apr 2016). Applications of Combinatorial Matrix Theory to Laplacian Matrices of Graphs (بزبان انگریزی). CRC Press. p. 197. ISBN:978-1-4398-6339-8. ... The complete graph on the largest number of vertices that is planar is K4 and that a(K4) equals 4.
  • Ivars Peterson (2002). Mathematical Treks: From Surreal Numbers to Magic Circles (بزبان انگریزی). MAA. p. 95. ISBN:978-0-88385-537-9. 7 is an example of an integer that can't be written as the sum of three squares.
  • Béla Bajnok (13 May 2013). An Invitation to Abstract Mathematics (بزبان انگریزی). Springer Science & Business Media. ISBN:978-1-4614-6636-9. There is no algebraic formula for the roots of the general polynomial of degrees 5 or higher.

wolfram.com

mathworld.wolfram.com

  • Eric W. Weisstein. "Tetrahedron". mathworld.wolfram.com (بزبان انگریزی). Retrieved 2020-07-28.