complex (1) | template<class T> T arg (const complex<T>& x); |
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complex (1) | template<class T> T arg (const complex<T>& x); |
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arithmetic type (2) | double arg (ArithmeticType x); // additional overloads |
(real,imag)
forms with the real axis (i.e., its arc tangent). It returns the same as:
|
|
double
, except if the argument is float
or long double
(in which case, the return type is of the same type as the argument).
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The polar form of (3,4) is 5*e^i*0.927295rad |