DLMF:4.23.E42 (Q1794)

No description defined

Language	Label	Description	Also known as
English	DLMF:4.23.E42	No description defined

Statements

Defining formula

Failed to parse (LaTeXML (experimental; uses MathML): Invalid response ("") from server "http://latexml:8080/convert/":): {\displaystyle \aGudermannian@{x}=\ln@@{\tan@{\tfrac{1}{2}x+\tfrac{1}{4}\pi}}=\ln@{\sec@@{x}+\tan@@{x}}=\asinh@{\tan@@{x}}=\acsch@{\cot@@{x}}=\acosh@{\sec@@{x}}=\asech@{\cos@@{x}}=\atanh@{\sin@@{x}}=\acoth@{\csc@@{x}}.}

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DLMF id

DLMF:4.23.E42

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Symbols used

the ratio of the circumference of a circle to its diameter

Defining formula

Failed to parse (LaTeXML (experimental; uses MathML): Invalid response ("") from server "http://latexml:8080/convert/":): {\displaystyle \cpi}

xml-id

C3.S12.E1.m2apdec

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