COMPUTINGARRAYBASECCOMPLEXabsCOMPLEX.HMATH.HSEARCH.HSTDIO.HSTDLIB.HSTRING.HTIME.HGRAPHICSIOLOWLEVELSECURITYSORTSTLMATHSSTATISTICSENGINEERINGFINANCEUNITSSTRINGSPHYSICS Computing › C › Complex OverviewComplex library belongs to C++ standard library and provides the complex class to contain complex numbers in cartesian form and a set of functions and overloads to operate with them.Section Pages absabsabsolute value of a complex number