Annotations:

Symbols:

$\cos z$: cosine function, $\sin z$: sine function and $x$: real variable

A&S Ref:

AMS55 (Figure 4.3)

Permalink:

http://dlmf.nist.gov/4.15.F1.mag

Encodings:

Magnified png, pdf

See also:

Annotations for §4.15 and Ch.4