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About the Project
4
Elementary Functions
Logarithm, Exponential, Powers
4.3
Graphics
4.3
Graphics
4.4
Special Values and Limits
Figure 4.3.1
(See
in context
.)
Figure 4.3.1:
ln
x
and
e
x
. Parallel tangent lines at
(
1
,
0
)
and
(
0
,
1
)
make evident the mirror symmetry across the line
y
=
x
, demonstrating the inverse relationship between the two functions.
ⓘ
Annotations:
Symbols:
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