Texas Instruments TI-89 Titanium - Page 684

Memory and Variable Management 681
You cannot create a folder within another folder.
The system variables in the
MAIN folder are always directly accessible, regardless of the
current folder.
Note: User-defined variables are stored in the “current folder” unless you specify
otherwise.
MAIN
System variables
User-defined
a=1, b=2, c=3
f(x)=x³+x²+x
ALG102
User-defined
b=5, c=100
f(x)=sin(x)+cos(x)
DAVE
User-defined
a=3, b=1, c=2
f(x)=x²+6
MATH
User-defined
a=42, c=6
f(x)=3x²+4x+25
Name of current folder
Variables