eigen/Cwise__array__atan2__array_8cpp_source.html

 Array<double,1,3> x(8,-25,3),

                   y(1./3.,0.5,-2.);

 cout << "atan2([" << x << "], [" << y << "]) = " << x.atan2(y) << endl; // using ArrayBase::pow

 cout << "atan2([" << x << "], [" << y << "] = " << atan2(x,y) << endl; // using Eigen::pow

x
Array< double, 1, 3 > x(8,-25, 3)

y
Array< double, 1, 3 > y(1./3., 0.5,-2.)

Eigen::ArrayBase::atan2
const std::enable_if_t< std::is_same< typename LhsDerived::Scalar, typename RhsDerived::Scalar >::value, Eigen::CwiseBinaryOp< Eigen::internal::scalar_atan2_op< typename LhsDerived::Scalar, typename RhsDerived::Scalar >, const LhsDerived, const RhsDerived > > atan2(const Eigen::ArrayBase< LhsDerived > &x, const Eigen::ArrayBase< RhsDerived > &exponents)
Definition: GlobalFunctions.h:191