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Hace 12 horas · The interest of Leonhard Euler (1707–1783) in number theory was first spurred in 1729, when a friend of his, the amateur Goldbach, pointed him towards some of Fermat's work on the subject. [48] [49] This has been called the "rebirth" of modern number theory, [50] after Fermat's relative lack of success in getting his contemporaries' attention for the subject. [51]
Hace 12 horas · A fast algorithm for calculation of the Euler gamma function for any algebraic argument (including rational) was constructed by E.A. Karatsuba. For arguments that are integer multiples of 1 / 24, the gamma function can also be evaluated quickly using arithmetic–geometric mean iterations (see particular values of the gamma function).
Hace 12 horas · The gamma function obeys the equation. Taking the logarithm on both sides gives: Differentiating both sides with respect to z gives: Since the harmonic numbers are defined for positive integers n as. the digamma function is related to them by. where H0 = 0, and γ is the Euler–Mascheroni constant.
Hace 12 horas · - Ngày 29/5/1736: Leonhard Euler dùng ký hiệu Pi vào toán học lần đầu tiên. Ông là nhà toán học nổi tiếng của nước Thụy Sĩ, sinh ngày 15/4/1707 và mất ngày 18/9/1783.
Hace 12 horas · 1707 - Se naşte LEONHARD EULER (m. 1783), matematician, fizician elveţian. 1843 - Se naşte HENRY JAMES (m. 1916), scriitor american. 1874 - Se naşte JOHANNES STARK (m. 1957), fizician german, laureat cu Premiul Nobel pentru Fizică (1919).
