Texas Instruments TI-86 Manual Book page 375

"
String entry:
STRNG menu
‡ program editor
I/O menu
sub(
STRNG menu
N
Subtraction:
T
" string "
Defines a string. When you display a string, it is left-
justified on the screen.
Strings are interpreted as text characters, not numbers.
For example, you cannot perform a calculation with
strings such as "4" or "A¹8". To convert between string
variables and equation variables, use
as described on pages 290 and 361, respectively.
sub( string , begin , length )
Returns a new string that is a subset of string, starting
at character number begin and continuing for the
specified length.
N
numberA numberB
Returns the value of numberB subtracted from
numberA. The arguments can be real or complex.
N
list number
Returns a list in which number is subtracted from each
element of list. The arguments can be real or complex.
Chapter 20: A to Z Function and Instruction Reference
"Hello"¶STR b
Disp STR+", Jan" b
and
Eq4St( St4Eq(
"The answer is:"¶STR b
sub(STR,5,6) b
N
6
NL
10
{10,9,8}
In
RectC
{8,1,(5,2)}
Hello
Hello, Jan
The answer is:
answer
2 b
4.5 b
4 b
N
complex number mode:
3 b
N
L
{(5,0) ( 2,0) (2,2)}
363
Done
4
14.5
{6 5 4}