عدد پی
برای مطالعه بیشتر

Blatner, David (1999). The Joy of Pi. Walker & Company. ISBN 978-0-8027-7562-7.
Borwein, Jonathan; Borwein, Peter (1984). "The Arithmetic-Geometric Mean and Fast Computation of Elementary Functions" (PDF). SIAM Review. 26 (3): 351–365. CiteSeerX 10.1.1.218.8260. doi:10.1137/1026073.
Borwein, Jonathan; Borwein, Peter; Bailey, David H. (1989). "Ramanujan, Modular Equations, and Approximations to Pi or How to Compute One Billion Digits of Pi". The American Mathematical Monthly (Submitted manuscript). 96 (3): 201–219. doi:10.2307/2325206. JSTOR 2325206.
Chudnovsky, David V. and Chudnovsky, Gregory V., "Approximations and Complex Multiplication According to Ramanujan", in Ramanujan Revisited (G.E. Andrews et al. Eds), Academic Press, 1988, pp. 375–396, 468–472
Cox, David A. (1984). "The Arithmetic-Geometric Mean of Gauss". L'Enseignement Mathématique. 30: 275–330.
Delahaye, Jean-Paul (1997). Le Fascinant Nombre Pi. Paris: Bibliothèque Pour la Science. ISBN 2-902918-25-9.
Engels, Hermann (1977). "Quadrature of the Circle in Ancient Egypt". Historia Mathematica. 4 (2): 137–140. doi:10.1016/0315-0860(77)90104-5.
Euler, Leonhard, "On the Use of the Discovered Fractions to Sum Infinite Series", in Introduction to Analysis of the Infinite. Book I, translated from the Latin by J.D. Blanton, Springer-Verlag, 1964, pp. 137–153
Hardy, G. H.; Wright, E. M. (2000). An Introduction to the Theory of Numbers (fifth ed.). Oxford, UK: Clarendon Press.
Heath, T.L., The Works of Archimedes, Cambridge, 1897; reprinted in The Works of Archimedes with The Method of Archimedes, Dover, 1953, pp. 91–98
Huygens, Christiaan, "De Circuli Magnitudine Inventa", Christiani Hugenii Opera Varia I, Leiden 1724, pp. 384–388
Lay-Yong, Lam; Tian-Se, Ang (1986). "Circle Measurements in Ancient China". Historia Mathematica. 13 (4): 325–340. doi:10.1016/0315-0860(86)90055-8.
Lindemann, Ferdinand (1882). "Ueber die Zahl pi". Mathematische Annalen. 20 (2): 213–225. doi:10.1007/bf01446522. S2CID 120469397. Archived from the original on 22 January 2015.
Matar, K. Mukunda; Rajagonal, C. (1944). "On the Hindu Quadrature of the Circle" (Appendix by K. Balagangadharan)". Journal of the Bombay Branch of the Royal Asiatic Society. 20: 77–82.
Niven, Ivan (July 1947). "A Simple Proof that pi Is Irrational". Bulletin of the American Mathematical Society. 53 (7): 507. doi:10.1090/S0002-9904-1947-08821-2.
Ramanujan, Srinivasa (1914). "Modular Equations and Approximations to π". Quarterly Journal of Pure and Applied Mathematics. XLV: 350–372. Reprinted in Ramanujan, Srinivasa (2015) [1927].  Hardy, G. H.; Seshu Aiyar, P. V.; Wilson, B. M. (eds.). Srinivasa Ramanujan: Collected Papers. Cambridge University Press. pp. 23–29. ISBN 978-1-107-53651-7.
Shanks, William, Contributions to Mathematics Comprising Chiefly of the Rectification of the Circle to 607 Places of Decimals, 1853, pp. i–xvi, 10
Shanks, Daniel; Wrench, John William (1962). "Calculation of pi to 100,000 Decimals". Mathematics of Computation. 16 (77): 76–99. doi:10.1090/s0025-5718-1962-0136051-9.
Tropfke, Johannes (1906). Geschichte Der Elementar-Mathematik in Systematischer Darstellung [The history of elementary mathematics] (به آلمانی). Leipzig: Verlag Von Veit.
Viete, Francois, Variorum de Rebus Mathematicis Reponsorum Liber VII. F. Viete, Opera Mathematica (reprint), Georg Olms Verlag, 1970, pp. 398–401, 436–446
Wagon, Stan (1985). "Is Pi Normal?". The Mathematical Intelligencer. 7 (3): 65–67. doi:10.1007/BF03025811. S2CID 189884448.
Wallis, John (1655–1656). Arithmetica Infinitorum, sive Nova Methodus Inquirendi in Curvilineorum Quadratum, aliaque difficiliora Matheseos Problemata (به لاتین). Oxford. Reprinted in Opera Mathematica. Vol. 1. Oxford: E Theatro Sheldoniano. 1695. pp. 357–478.
Zebrowski, Ernest (1999). A History of the Circle: Mathematical Reasoning and the Physical Universe. Rutgers University Press. ISBN 978-0-8135-2898-4.
نسبت محیط دایره به قطر آن دقیقاً برابر  \pi  است.
از آنجا که  \pi  جزء مجموعهٔاعداد متعالی است، تربیع دایره با استفاده از ابزارهای سنتی خط‌کش و پرگار ممکن نیست.
ثابت  \pi  با استفاده از موزائیک در محوطهٔ ساختمان ریاضیات دانشگاه فنی برلین
رابطهٔ بین توان‌های موهومی عدد e and نقطه (هندسه) روی محیط دایره واحد به مرکزیت مبدأ مختصاتی در صفحه مختلط را می‌توان با استفاده از فرمول اویلر به‌دست‌آورد.