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You may declare that a VARIABLE name represents a complex quantity.  The format of a complex declaration is:

variable_name = COMPLEX ( real_name , imaginary_name )  

 

This declaration tells FlexPDE that variable_name represents a complex quantity, and assigns the real_name and imaginary_name to the real and imaginary parts of variable_name.  You may subsequently assign EQUATIONS and boundary conditions either to the variable_name, or to its components individually.  Similarly, you can perform arithmetic operations or request graphical output of either the variable_name itself, or its components individually.

 

Example:

VARIABLES

U,V

C = COMPLEX(Cr,Ci)