Parameters can be entered in command lines also by their name, i.e. independently from their position. This is particularly useful when an optional parameter has to be specified for a command having several optional parameters. The mathematical operators are extended to complex calculus, and mixed-mode operations are always permitted, where an operation between a complex and a real gives a complex as result. The same convention is valid for system functions, with no need to specify a complex function name. For instance, SIN of a complex quantity will result in a complex result.
All complex calculations are in simple precision.
Other commands, which are not foreseen for complex, will operate on the REAL or IMAGinary parts of the complex vector. Characters in columns 73-80 are ignored.