INPUT in cas/end program

[Han]

(04-10-2015 07:45 PM)salvomic Wrote:  hi all,
sorry if I repost a question:
I'm trying to upgrade my program to calculate the Fourier's Coefficient, it's a #cas/#end program, with a function (ChooseInterval()) to choose value for integral's interval.
At the moment it has two options ([0, 2PI] - [-PI, PI]), now I'm adding another option to enclose the case "Other", to calculate any interval.
But now (for case 3) I need to input two values for inf and sup values of interval.
I'm trying:

Code:


INPUT({low,hi}, "Interval",{"lower limit", "upper limit"}, {"input lower limit", "input upper limit"}, {0,2});

It works with a "Home" program, but not here: I get "Error: Invalid input"...

Any help?

Salvo

From http://www.hpmuseum.org/forum/thread-359...l#pid32427 :

Non-CAS programs can make use of "interface" commands such as CHOOSE() and INPUT() whereas CAS programs are generally not interactive. A workaround is to use the EXPR() command to call these commands indirectly. EXPR() works like CAS() in that both take input strings.