Texas Instruments TITANIUM TI-89 - Manual (Page 277)

Symbolic Manipulation 277
@1 ... @255 @1 ... @255 @1 ... @255 @1 ... @255
ˆ
, , , , e
This notation indicates an “arbitrary constant”
that represents any integer.
When an arbitrary constant occurs multiple
times in the same session, each occurrence is
numbered consecutively. After it reaches 255,
arbitrary integer consecutive numbering
restarts at @0. Use Clean Up
2:NewProb to
reset to @1.
Note: For @ , press: 8 9
ˆ represents infinity, and e represents the
constant
2.71828... (base of the natural
logarithms).
These constants are often used in entries as
well as results.
Notes:
For ˆ, press:
@ 8 *
For e , press:
@ 8 s