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4
Elementary Functions
Trigonometric Functions
4.15
Graphics
4.15
Graphics
4.16
Elementary Properties
Figure 4.15.11
(See
in context
.)
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Figure 4.15.11:
arctan
(
x
+
i
y
)
(principal value). There are branch cuts along the imaginary axis from
−
i
∞
to
−
i
and
i
to
i
∞
.
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ⓘ
Annotations:
Symbols:
i
: imaginary unit
,
arctan
z
: arctangent function
,
x
: real variable
and
y
: real variable
Permalink:
http://dlmf.nist.gov/4.15.F11.mag
Encodings:
Magnified png
,
Vizualization
,
pdf
See also:
Annotations for
§4.15
and
Ch.4
Figure 4.15.11: (principal value). There are branch cuts along the
imaginary axis from to and to .
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