Difference between Real and Virtual Calculator

[DrD]

I set the active app to Solve, as Didier suggests, and the program does work, then, on the virtual calculator, with RTD(0,26.5,100) as the command entry line. 110.40 is the displayed result, and the Solve Symbolic View, E1, shows up as R=D*(1+A*T+B*T^2+C*(T-100)*T^3).

That was probably your design intention, so, I can confirm it works on this virtual calc, at least when Solve is the active app. STARTAPP() and STARTVIEW() might also be useful for you.