! You don't want to put the burden of remembering all this on the user, so it's easier to obligate the
user to use the fixed number of arguments.
On the other hand, Frank Westlake notes these advantages:
! You can write one function instead of several very similar functions, which saves memory.
! The user doesn't have to remember which function to use for a given case.
! You can use an empty list as a request for help. If the list has no elements, the program returns a
string that describes the list format.
(Credit to Glenn Fisher, Alex Astashyn, and Frank Westlake)
[7.10] Calling built-in applications from your programs
It would be very useful to be able to call built-in 89/92+ applications from user programs. For example,
if your program requires a matrix from the user, your program could call the matrix editor to create the
matrix. This same idea applies to the text editor and the numeric solver.
In general, you can't do this. There is a work-around, but calling the built-in application must be the last
action of the program, and you cannot return control to the program after the user is done with the
application.
The basic idea is to use setMode() to set the Split 1 application, like this:
setMode("Split 1 App",appname)
where appname is the name of the application you want to run. Refer to the manual under setMode()
for the applications that can be used.
For example, to run the numeric solver application, use
setMode("Split 1 App","Numeric Solver")
Note that you don't really have to be using the two split windows. This program example sets up an
equation and calls the numeric solver:
t1()
Prgm
DelVar a,b,c
a+b+c→eqn
setMode("Split 1 App","Numeric Solver")
EndPrgm
(Credit declined)
[7.11] Run TI Basic programs before archiving for better execution speed
Archiving TI Basic programs saves RAM, but you will get better execution speed if you run the program
once before archiving it. As an example, I'll use TipDS' program to calculate the digits of pi:
PI(digits)
7 - 11
To Next Page
Loading...
Need help?
General
