Annotations:

Symbols:

$\mathrm{e}$: base of natural logarithm, $\ln z$: principal branch of logarithm function, $(a,b)$: open interval, $x$: real variable and $y$: real variable

Keywords:

exponential function, graphics, logarithm function, real argument

A&S Ref:

AMS55 (Figure 4.2 in simpler form)

Permalink:

http://dlmf.nist.gov/4.3.F1.mag

Encodings:

Magnified png, pdf

Change (effective with 1.0.11):

The figure was rescaled, with symmetry lines added, to make evident the symmetry due to the inverse relationship between the two functions.

Suggested 2015-11-12 by James W. Pitman

See also:

Annotations for §4.3 and Ch.4