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CArg

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Returns  the principal value of the argument of a complex number, . If the complex number has the form  where  and  are real then:

 

 

(N.B. the corresponding arctan function in Microsoft Excel or Visual Studio is ATAN2, rather than ATAN)

 

For details of how to pass complex numbers to and from the Nematrian website and on principal values of complex-valued functions please see Complex Numbers Introduction.

 

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