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Definition of: logarithmic spiral
Math.
The polar curve traced by a point moving so that the angle subtended between its radius vector and a tangent to the curve is equal to the modulus; a polar curve traced by a point with a polar angle proportional to the logarithm of the distance from the point to the pole: also called equiangular spiral, logistic spiral.
o. Origin.
x.,y. x–axis,y–axis.
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