Re: Log[x]//TraditionalForm

*To*: mathgroup at smc.vnet.net*Subject*: [mg96062] Re: [mg96049] Log[x]//TraditionalForm*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Wed, 4 Feb 2009 05:18:02 -0500 (EST)*Organization*: Mathematics & Statistics, Univ. of Mass./Amherst*References*: <200902031132.GAA00303@smc.vnet.net>*Reply-to*: murray at math.umass.edu

No, in mathematics log x or log(x) is a perfectly acceptable, perhaps the predominant, notation for the base-e, natural logarithm. In calculus books, ln x or ln(x) is typically used for that -- so as not to confuse students who were taught that log means the base-10 logarithm. O.T.: P.S. M.I.T. has an all-male a cappella singing group named the "Logarhythms". slawek wrote: > The natural logarithm function in "traditional form" in Mathematica (version > 6.0.2.0) > > Log[x]//TraditionalForm > log(x) > > This is "not a bug but a feature", but in mathematics the natural logarithm > is just ln(x) or even ln x. > The true traditional notation use log for decimal logarithm, ln for natural > logarithm, lb for binary logarithm, and > log_{b}x for logarithm with base b. Unfortunatelly in most computer > programs (see FORTRAN) LOG > stands for natural logarithm (an exception is Pascal). > > Nevertheless, how to force to use ln(x) instead log(x) ? > > The brute way is use /.Log->ln//TraditionalForm. > > Is any more elegant way to do this? > > slawek > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**Follow-Ups**:**Re: Re: Log[x]//TraditionalForm***From:*Andrzej Kozlowski <akoz@mimuw.edu.pl>

**References**:**Log[x]//TraditionalForm***From:*"slawek" <human@site.pl>