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The reciprocal of five conventionally appears twice in the sum. The sum of the reciprocals of the Proth primes, of which there may be finitely many or infinitely many, is known to be finite, approximately 0.747392479. [2] The prime quadruplets are pairs of twin primes with only one odd number between them.
SR-50 (1974) Printed circuit board. Data code 035: 3rd week 1975. The SR-50 was Texas Instruments' first scientific pocket calculator with trigonometric and logarithm functions. . It enhanced their earlier SR-10 and SR-11 calculators, introduced in 1973, which had featured scientific notation, squares, square root, and reciprocals, but had no trig or log functions, and lacked other featur
The harmonic mean is the reciprocal of the arithmetic mean of the reciprocals of the numbers, ... and a nomogram to calculate it. The blue line shows that the ...
A prime p (where p ≠ 2, 5 when working in base 10) is called unique if there is no other prime q such that the period length of the decimal expansion of its reciprocal, 1/p, is equal to the period length of the reciprocal of q, 1/q. [8]
The money multiplier is normally presented in the context of some simple accounting identities: [1] [2] Usually, the money supply (M) is defined as consisting of two components: (physical) currency (C) and deposit accounts (D) held by the general public.
From January 2008 to November 2008, if you bought shares in companies when Jon A. Shirley joined the board, and sold them when he left, you would have a -48.9 percent return on your investment, compared to a -45.1 percent return from the S&P 500.
Reciprocal aircraft heading, 180 degrees (the opposite direction) from a stated heading Reciprocal lattice , a basis for the dual space of covectors, in crystallography Reciprocal length , a measurement used in science
From January 2008 to December 2012, if you bought shares in companies when Dennis H. Reilley joined the board, and sold them when he left, you would have a -17.6 percent return on your investment, compared to a -2.8 percent return from the S&P 500.