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logarithm
logarithmic scale
logarithmic scale A scale of measurement in which an increase or decrease of one unit represents a tenfold increase or decrease in the quantity measured. Decibels and pH measurements are common examples of logarithmic scales of measurement.
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Algorithm produces base-2 logarithms. (Design Ideas) (technical)
Magazine article from: EDN; 2/16/1989; ; 700+ words
; ...Algorithm produces base-2 logarithms To most programmers...algorithm that computes a logarithm is something hidden...You can calculate logarithms in other bases by multiplying the base-2 logarithms by the appropriate...simply the base-2 logarithm of the desired base...
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Substantive knowledge and mindful use of logarithms: a conceptual analysis for mathematics educators.
Magazine article from: Focus on Learning Problems in Mathematics; 6/22/2006; ; 700+ words
; ...to investigate the logarithm. Empirical evidence...substantive knowledge about logarithms and analyzes their...that gave rise to the logarithm concept. The author...curricular approach to logarithms that address the historical...guided by mapping. The logarithm is a concept whose...
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Chover-type laws of the iterated logarithm for weighted sums of [[rho].sup.*]-mixing sequences.
Magazine article from: Journal of Applied Mathematics and Stochastic Analysis; 1/1/2006; ; 700+ words
; ...establish a Chover-type law of the iterated logarithm for the weighted sums of [[rho...Chover-type LIL (laws of the iterated logarithm). This type LIL has been established...the Chover-type law of the iterated logarithm for the partial sums to the case where...
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Computing with real arithmetic. (development of a logarithm-based method of representing numbers on a computer)
Magazine article from: Science News; 7/20/1991; ; 700+ words
; ...studying an alternative, logarithm-based method of representing...idea is to find natural logarithms repeatedly until the result...the number of times the logarithm has been determined (the level) and the final logarithm (the index). The computer...
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New York Inventor Develops Logarithms Approximation Implementing Circuit
News Wire article from: US Fed News Service, Including US State News; 9/7/2007; 428 words
; ...of Endicott, N.Y., has developed logarithms approximation implementing circuit...A method for approximating a base 2 logarithm of a binary input and the circuit to...determining the integer portion of the logarithm, a lookup table module, a residual...
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A new digital signature scheme based on factoring and discrete logarithms.(Report)
Magazine article from: Journal of Mathematics and Statistics; 10/1/2008; ; 700+ words
; ...factoring (FAC) [7] and Discrete Logarithms(DL) [8] problems. However, it...problems namely factoring and discrete logarithms. Some notations: The following parameters...scheme based on factoring and discrete logarithms. The proposed new signature scheme...
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Radiative electroweak symmetry breaking beyond leading logarithms (1).(Report)
Magazine article from: Canadian Journal of Physics; 7/1/2006; ; 700+ words
; ...radiative electroweak symmetry breaking to occur, to leading-logarithm order, for small values of y--the Higgs self-coupling...with the [[empty set].sup.4] factor) represents a logarithm-independent counter-term. Choosing the renormalization...
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Logarithms: the new floating point?(GLOBAL DESIGNER)
Magazine article from: EDN; 1/19/2006; ; 700+ words
; ...designers say that it offers a performance gain in such mathematically intensive algorithms. When designers represent numbers as logarithms, addition or subtraction carries out the multiplying or dividing of two numbers. Clearly, this approach offers the possibility...
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Logarithms-the new floating point?
Magazine article from: EDN Europe; 12/5/2005; 700+ words
; ...designers say that it offers a performance gain in such mathematically-intensive algorithms. When numbers are represented as logarithms, multiplying or dividing two numbers is carried out by addition or subtraction. Clearly, this offers the possibility of...
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McLane Advanced Technologies Wins $344,276 Contract for Logarithm Courses
News Wire article from: US Fed News Service, Including US State News; 9/15/2008; 294 words
; ...Sept. 15 -- The U.S. Army has awarded a $344,276 contract to McLane Advanced Technologies, Temple, Texas, for logarithm courses. The contract was awarded by the U.S. Army Contracting Command Europe, Bavaria, Germany. For more information...
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Logarithms
Encyclopedia entry from: The Gale Encyclopedia of Science
Logarithms Finding the logarithm of a number is...give the natural logarithm. Lacking such...tables of common logarithms found in various...Since tables of logarithms show positive mantissas only, a logarithm such as -5...
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logarithm
Book article from: The Columbia Encyclopedia, Sixth Edition
...separate article) as the base are called natural logarithms or Napierian logarithms (for John Napier). The natural logarithm of a number x is denoted by ln x or simply log x. Since logarithms are exponents , they satisfy all the usual rules...
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Logarithm
Encyclopedia entry from: UXL Encyclopedia of Science
Logarithm In the 1500s and early 1600s, although...logarithmic, or proportionate, numbers. How logarithms work In the commonly known base 10 system...multiplication, numbers are converted into logarithms, the exponents added together, and...
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Briggs, Henry
Dictionary entry from: Complete Dictionary of Scientific Biography
...himself on the new form of logarithms and on the solution of spherical...Napier and Briggs in developing logarithms were described by the latter...recorded do not yield common logarithms: for if R is the radius...that 0 should be kept for the logarithm of the whole sine (as in...
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Slide Rule
Book article from: Mathematics
...the slide rule to add these logarithms. Then find the antilog of...except one subtracts the logarithms. Of course, one must have logarithm tables handy when multiplying...slide rule, to look up the logarithms. One can compute powers...
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