Program to change entry mode on Prime

[Michael de Estrada]

This program allows the entry mode to be changed from any screen without the need to enter the Home settings screen.

EXPORT Entry_Mode()

BEGIN

CHOOSE(N,"Entry_Mode","Textbook","Algebraic","RPN");

CASE

IF N==1 THEN

Entry:=0;

END;

IF N==2 THEN

Entry:=1;

END;

IF N==3 THEN

Entry:=2;

END;

DEFAULT

END;

END;

Edited: 27 Oct 2013, 11:13 a.m.

[Joseph Ec]

Hi Friend,

Nice PRG. but:

IF CHOOSE(...)

THEN

Entry:=N-1;

END;

Same, short salute ;)

jose

[Michael de Estrada]

Actually, It's simpler than that:

BEGIN 

CHOOSE (...); 

Entry:=N-1; 

END;

Using IF..THEN is unnecessary and results in a syntax error.

[Han]

Quote:

---

Actually, It's simpler than that:

BEGIN 

CHOOSE (...); 

Entry:=N-1; 

END;

Using IF..THEN is unnecessary and results in a syntax error.

---

Your code actually produces an error if the user "cancels" the menu (presses [On] or [Esc]) because N would default to 0 and make Entry be equal to -1.

When using CHOOSE() inside IF THEN END, do not include the ";" at the end of CHOOSE() because it "ends" the block prematurely. This causes the syntax error. Instead, type

IF CHOOSE(...)  // no semi-colon like Joseph Ec originally suggested

THEN

Entry:=N-1;

END;

Edited: 28 Oct 2013, 10:14 a.m.