- logarithmic function
- noun Date: 1836 a function (as y = loga x or y = ln x) that is the inverse of an exponential function (as y = ax or y = ex) so that the independent variable appears in a logarithm
New Collegiate Dictionary. 2001.
logarithmic function
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logarithmic function — noun : a function that is a logarithm * * * Math. a function defined by y = logbx, esp. when the base, b, is equal to e, the base of natural logarithms. [1945 50] … Useful english dictionary
logarithmic function — Math. a function defined by y = logbx, esp. when the base, b, is equal to e, the base of natural logarithms. [1945 50] * * * … Universalium
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Logarithmic derivative — In mathematics, specifically in calculus and complex analysis, the logarithmic derivative of a function f is defined by the formula where f ′ is the derivative of f. When f is a function f(x) of a real variable x, and takes real, strictly… … Wikipedia
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Logarithmic integral function — In mathematics, the logarithmic integral function or integral logarithm li(x) is a special function. It occurs in problems of physics and has number theoretic significance, occurring in the prime number theorem as an estimate of the number of… … Wikipedia
Logarithmic video amplifier — A logarithmic video amplifier or LVA is typically part of radar and electronic countermeasures microwave systems and sonar navigation systems, used to convert a very large dynamic range input power to an output voltage that increases… … Wikipedia
