Natural logarithm

(redirected from Natural logarithms)
Also found in: Dictionary, Thesaurus, Encyclopedia.

Natural logarithm

Logarithm to the base e (approximately 2.7183).

Natural Log

In mathematics, the exponent to which one must raise the number e (a mathematical constant approximately equal to 2.718) to produce a given number. The natural log has a number of applications across mathematics, including in compound interest.
References in periodicals archive ?
Scatterplots of the dependent variable LN_TBCOEF10 related to the independent variables LN_PEROOM, LN_ILLITER, and LN_INADSAN (the variables transformed to natural logarithm now have the prefix "LN_") were then constructed.
Regression of the natural logarithm of raw counts on time yielded a naive estimate of the intrinsic growth rate (r) of 0.
Log-levels must be used to calculate estimated impacts since all regulation variables are entered as natural logarithms.
Leonard (1975) described a Bayesian hierarchical model with multivariate normal structure for means and for natural logarithms of variances that clearly demonstrates important properties of shrinkage estimators when applied to both means and variances.
Most calculators have the capacity to compute natural logarithms directly.
To document growth, the data were transformed to natural logarithms (7).
851 Note: all variables are expressed in terms of their natural logarithms.
Male crabs were designated as either morphometrically immature or mature by using differences in the regression equations for the relationships between the natural logarithms of the length of the dorsal propodus of their largest cheliped and carapace width in what were clearly either juvenile (small and gonadally immature) or adult crabs (large and gonadally mature).
To do so, we took the natural logarithms of all the rates available to us and then regressed the natural logarithms of the wages, fatality rates, and injury and illness rates against the year of observation.