Logarithmic spiral
Logarithmic Log`a*rith"mic, Logarithmical Log`a*rith"mic*al, a. [Cf. F. logarithmique.] 1. Of or pertaining to logarithms; consisting of logarithms. [1913 Webster]

2. Using logarithms; as, logarithmic graph paper; a logarithmic scale. [PJC]

3. Having a logarithm in one or more of the unknowns; -- of an equation. [PJC]

{Logarithmic curve} (Math.), a curve which, referred to a system of rectangular co["o]rdinate axes, is such that the ordinate of any point will be the logarithm of its abscissa.

{Logarithmic spiral}, a spiral curve such that radii drawn from its pole or eye at equal angles with each other are in continual proportion. See {Spiral}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Logarithmic spiral — Spiral Spi ral, n. [Cf. F. spirale. See {Spiral}, a.] 1. (Geom.) A plane curve, not re[ e]ntrant, described by a point, called the generatrix, moving along a straight line according to a mathematical law, while the line is revolving about a fixed …   The Collaborative International Dictionary of English

  • Logarithmic spiral — A logarithmic spiral, equiangular spiral or growth spiral is a special kind of spiral curve which often appears in nature. The logarithmic spiral was first described by Descartes and later extensively investigated by Jakob Bernoulli, who called… …   Wikipedia

  • logarithmic spiral — logaritminė spiralė statusas T sritis fizika atitikmenys: angl. logarithmic spiral vok. logarithmische Spirale, f rus. логарифмическая спираль, f pranc. spirale logarithmique, f …   Fizikos terminų žodynas

  • logarithmic spiral — noun : equiangular spiral …   Useful english dictionary

  • Logarithmic Spiral Beaches — Beaches which can be modeled by a logarithmic equation are often called log spiral beaches. They have also historically been described as ‘zeta cure bays’, ‘half heart’ or ‘crenulate’ shaped bays, or ‘headland bays’. The curve can be modeled… …   Wikipedia

  • Logarithmic — Log a*rith mic, Logarithmical Log a*rith mic*al, a. [Cf. F. logarithmique.] 1. Of or pertaining to logarithms; consisting of logarithms. [1913 Webster] 2. Using logarithms; as, logarithmic graph paper; a logarithmic scale. [PJC] 3. Having a… …   The Collaborative International Dictionary of English

  • Logarithmic curve — Logarithmic Log a*rith mic, Logarithmical Log a*rith mic*al, a. [Cf. F. logarithmique.] 1. Of or pertaining to logarithms; consisting of logarithms. [1913 Webster] 2. Using logarithms; as, logarithmic graph paper; a logarithmic scale. [PJC] 3.… …   The Collaborative International Dictionary of English

  • Spiral — Spi ral, n. [Cf. F. spirale. See {Spiral}, a.] 1. (Geom.) A plane curve, not re[ e]ntrant, described by a point, called the generatrix, moving along a straight line according to a mathematical law, while the line is revolving about a fixed point… …   The Collaborative International Dictionary of English

  • Spiral of Archimedes — Spiral Spi ral, n. [Cf. F. spirale. See {Spiral}, a.] 1. (Geom.) A plane curve, not re[ e]ntrant, described by a point, called the generatrix, moving along a straight line according to a mathematical law, while the line is revolving about a fixed …   The Collaborative International Dictionary of English

  • Spiral — In mathematics, a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point.piral or helixA spiral and a helix are two terms that are easily confused, but represent different objects …   Wikipedia

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