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4
Elementary Functions
Logarithm, Exponential, Powers
4.2
Definitions
4.2
Definitions
4.3
Graphics
Figure 4.2.1
(See
in context
.)
Figure 4.2.1:
z
-plane: Branch cut for
ln
z
and
z
α
.
ⓘ
Annotations:
Symbols:
ln
z
: principal branch of logarithm function
and
z
: complex variable
Keywords:
branch cut
,
logarithm function
,
power function
Permalink:
http://dlmf.nist.gov/4.2.F1.mag
Encodings:
Magnified png
,
pdf
See also:
Annotations for
§4.2
and
Ch.4