(Q776598)

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atan2

arctangent function with two arguments

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instance of

inverse trigonometric function

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Atan2 diagram.svg
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\operatorname {atan2} (y,x)={\begin{cases}\arctan \left({\frac {y}{x}}\right)&\qquad x>0\\\arctan \left({\frac {y}{x}}\right)+\pi &\qquad y\geq 0,x<0\\\arctan \left({\frac {y}{x}}\right)-\pi &\qquad y<0,x<0\\+{\frac {\pi }{2}}&\qquad y>0,x=0\\-{\frac {\pi }{2}}&\qquad y<0,x=0\\{\text{undefined}}&\qquad y=0,x=0\end{cases}}

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WikiProject Mathematics

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schematic

Atan2definition.svg
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Atan2

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28 October 2013

Microsoft Academic ID

128709398

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Wikipedia(12 entries)

arwiki قوس الظل ثنائي العمدة
cswiki Atan2
dewiki Arctan2
enwiki Atan2
eswiki Arcotangente de dos parámetros
fawiki Atan2
frwiki Atan2
huwiki Arctg2
itwiki Arcotangente2
jawiki Atan2
siwiki Atan2
zhwiki Atan2

(Q776598)

atan2

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