No menus on the nspire
XXX->Varname (up to 16 chars IIRC) and that can be literally anything from matrices to strings to ints to floats
no way to display pics directly. Plotting points can be a method that takes forever. Also, there's no output command.
The best way I've found to do any sort of proper display method was the text box, or regular disp with matrices.
You should also become VERY familiar with the string commands:
Left()
Mid()
right()
str & str
instring()
See the nspire catalog for a syntax example. Left takes a number of chars starting from the left of a string and returns that substring. same goes for right. Mid is identical to the 84+ sub(). & is the equivalent of str+str in 84+ basic. Instring finds the position of one string inside of another, and returns a particular int (0 I think) if it doesn't find any. It gives the first one then stops, so multiples are undetected.
request and requeststr are the only ways of getting in-prog input, but there are also inline args when you run the program. ex. prog(a,b,c) where a b and c are vars of any type that become vars in your program.
Local var is a great way of avoiding variable collisions between progs, it makes it so a var doesn't affect a var by the same name outside the program. Example:
Out of program:
6->a
in program:
local a
"hello"->a
end program:
disp a
- Returns 6
No way to exit PTT from basic
that's one of the many uses for ndless. besides, you can't run basic progs from within PTT anyways, unless you make them on the spot.
I probably got one or two things wrong, but that's about as far as BASIC can go while remaining inside one program. If you're not afraid of using multiple programs
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but there's already a closed beta, so it can't be very far off.