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Cos




Mathematica Notation

Traditional Notation









Elementary Functions > Cos[z] > Series representations > Generalized power series > Expansions at z==z0 > For the function itself





http://functions.wolfram.com/01.07.06.0030.01









  


  








Input Form





Cos[z] == (1/2) (HypergeometricPFQ[{}, {}, (-I) (z - Subscript[z, 0])]/ E^(I Subscript[z, 0]) + E^(I Subscript[z, 0]) HypergeometricPFQ[{}, {}, I (z - Subscript[z, 0])])








Standard Form





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MathML Form







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Rule Form





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Date Added to functions.wolfram.com (modification date)





2007-05-02