.. index:: pair: class; QGATE_SPACE::AbstractAngleParameter .. _doxid-class_q_g_a_t_e___s_p_a_c_e_1_1_abstract_angle_parameter: class QGATE_SPACE::AbstractAngleParameter ========================================= .. toctree:: :hidden: Quantum gate angle parameter basic abstract class. .. ref-code-block:: cpp :class: doxyrest-overview-code-block #include class AbstractAngleParameter { public: // methods virtual double :target:`getAlpha`() const = 0; virtual double :target:`getBeta`() const = 0; virtual double :target:`getGamma`() const = 0; virtual double :target:`getDelta`() const = 0; }; // direct descendants class :ref:`CU`; class :ref:`U4`;