Converting
02-04-2015, 07:31 PM (This post was last modified: 02-04-2015 08:57 PM by Han.)
Post: #20
 Han Senior Member Posts: 1,882 Joined: Dec 2013
RE: Converting
Make a customized key that brings up a full choose-menu of all the units (you can even do nested choose menus by applying choose() in sequence) and outputs the proper units. Once done, you probably could do all your conversions in a few keypresses and touch-screen taps. Bind the key to the underscore symbol and then every time you type _ it should allow you to quickly pick the units. Your program can even keep track of the most recent menus, too.

That said, I do think the lack of menus from the HP48 through HP50 calcs is indeed a nuisance.

Here's an example (just modify it to add more categories and units):
Code:
lastunit:={0,0}; KEY KS_Space() BEGIN   local list1:={"Length", "Volume"};   local list2:={{"m","cm","in"},{"m^3","cm^3","in^3"}};   local c1,c2;   if lastunit(1) OR lastunit(2) then     c1:=lastunit(1); c2:=lastunit(2);     choose(c2,list1(c1),list2(c1));   else     c1:=0; c2:=0;   end;   if c2==0 then     repeat       choose(c1,"Units",list1);       if c1 then         choose(c2,list1(c1),list2(c1));       end;     until c1==0 OR c2;     lastunit:={c1,c2};   end;   if c2 then return("_"+list2(c1,c2)); else return(""); end; END;

Only 10 keystrokes/screentouches to convert from 1 meter to inches (or 12 if you count setting up user mode)

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