Example image of eyePlorer eyePlorer map for 'Arg (mathematics)': Cartesian coordinate system Complex number Function (mathematics) Mathematics Position (vector) Real number Absolute value Angle Complex plane Radian Periodic function Multivalued function Degree (angle) Interval (mathematics) Principal value Well-defined Covering space Polar coordinate system Unit circle Tangent half-angle formula Atan2 Indeterminate form Instantaneous phase Complex squaring map External ray Z-transform Complex normal distribution Complex logarithm Mild-slope equation Euler's formula List of mathematical abbreviations Convergence problem Discrete Fourier transform ARG Argument (disambiguation) Nth root Analytic signal Logarithm List of logarithmic identities Compass and straightedge constructions Potential flow Exponentiation