Common User Keys setup and why?

[pvrs]

(01-14-2014 10:33 PM)CR Haeger Wrote:  Thank you Terje. If I understand your code may be suitable for quickly changing calculator settings without having to click through menus? Cool.

Anyone else using user keys extensively on the Prime?

My basic user keys as follows:

User Key programs:
program name FactorExp
KEY K_Power()
BEGIN
RETURN "factor()";
END;

program name eXpandExp
KEY K_Mul()
BEGIN
RETURN"expand()";
END;

program name ZerosExp
KEY K_2()
BEGIN
RETURN"zeros()";
END;

program name CnVrtUnit
KEY K_5()
BEGIN
RETURN "CONVERT()";
END;

program name SolveExp
KEY K_9()
BEGIN
RETURN "solve()";
END;

K_Power: factor(Exp), program FactorExp
K_Mul: expand(Exp), program eXpandExp
K_2: zeros(Exp), program ZerosExp
K_5: CONVERT(value_unit1,1_unit2), program CnVrtUnit
K_9: solve(Exp,[Var]), program SolveExp

define user functions:

Name: Rd->Dg
Function: (X*180)/π
Desc: Convert radians to degrees

Name: Dg->Rd
Function: (X*π)/180
Desc: Convert degrees to radians

Just getting started.