Conversion table from Celsius to Fahrenheit OR from Fahrenheit to Celsius:

Lbl 1
;beginning of loop
"1 FOR FAHR->CELS"
"2 FOR CELS->FAHR"?->Z
If Z=1:Then Goto 2
Else Goto 3
IfEnd
Lbl 2
"ENTER F TEMP"?->F
(F+40) Ans*5/9 Ans-40_
Goto 1
Lbl 3
"ENTER C TEMP"?->C
(C+40) Ans*9/5 Ans-40
Goto 1
; finishes loop Lbl 1 and Goto 1 can be deleted if  
you do not wish to have it loop.