Logarithmic

a.	1.	Of or pertaining to logarithms; consisting of logarithms.
	2.	Using logarithms; as, logarithmic graph paper; a logarithmic scale.
	3.	Having a logarithm in one or more of the unknowns; - of an equation. Logarithmic curve (Math.) a curve which, referred to a system of rectangular coördinate 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.

Adj.

1.

logarithmic - of or relating to or using logarithms; "logarithmic function"

log, logarithm