The system looks for a files called QuadEquation.procal in the same directory and attempt to run it by supplying the input prompts with values of $A and $B then returns the displayed value and final result value, which is set the variables $C and $D.
Syntax
Explanation
The system looks for a files called
QuadEquation.procalin the same directory and attempt to run it by supplying the input prompts with values of$Aand$Bthen returns the displayed value and final result value, which is set the variables$Cand$D.