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สมัครสมาชิก | คู่มือการใช้ | รายชื่อสมาชิก | ปฏิทิน | ข้อความวันนี้ | ค้นหา |
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เครื่องมือของหัวข้อ | ค้นหาในหัวข้อนี้ |
#1
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ประวัตินักคณิตศาสตร์
รบกวนหน่อยครับช่วยหาประวัตินักคณิตศาสตร์
1. Wallis?s Formula 2. Leibniz?s Series 3. Gregory?s Series ขอบคุณครับ |
#2
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อืม น่าเห็นใจจริง ๆ มิถุนายน 2012 บ้านเรา net ยังไม่ถึงไหนเลย ค้นคว้าลำบากมาก Gregory's series, is an infinite Taylor series expansion of the inverse tangent function. It was discovered in 1668 by James Gregory. It was re-rediscovered a few years later by Gottfried Leibniz, who re obtained the Leibniz formula for ฯ as the special case x = 1 of the Gregory series.[1] The earliest person to whom the series can be attributed with confidence is Madhava of Sangamagrama (c. 1340 โ c. 1425). The original reference (as with much of Madhava's work) is lost, but he is credited with the discovery by several of his successors in the Kerala school of astronomy and mathematics founded by him. |
#3
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John Wallis (/หwษโlษชs/;[2] Latin: Wallisius;
3 December [O.S.23 November] 1616 โโฌโ 8 November [O.S. 28 October] 1703) was an English clergyman and mathematician who is given partial credit for the development of infinitesimal calculus. Between 1643 and 1689 he served as chief cryptographer for Parliament and, later, the royal court.[3] He is credited with introducing the symbol โ to represent the concept of infinity.[4] He similarly used 1/โ for an infinitesimal. John Wallis was a contemporary of Newton and one of the greatest intellectuals of the early renaissance of mathematics.[5] Wiki 27 มีนาคม 2021 21:21 : ข้อความนี้ถูกแก้ไขแล้ว 1 ครั้ง, ครั้งล่าสุดโดยคุณ share |
#4
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Wallisโ Formula
Hereโs a fun formula for Pi involving an infinite product, known as Wallisโ Formula: (Pi/2) = (2*2)(4*4)(6*6)/(1*3)(3*5)(5*7) It is somewhat surprising that when you pull out every other pair of terms, you get a completely different kind of number! Sqrt[2] = (2*2)(6*6)(10*10)/(1*3)(5*7)(9*11) https://math.hmc.edu/funfacts/wallis-formula/ |
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