Texas Instruments TITANIUM TI-89 - Manual (Page 913)

Appendix A: Functions and Instructions 913
0b, 0h µ j [B] keys
µ j [H] keys
0b binaryNumber
0h hexadecimalNumber
Denotes a binary or hexadecimal number,
respectively. To enter a binary or hex number, you
must enter the 0b or 0h prefix regardless of the
Base mode. Without a prefix, a number is treated
as decimal (base 10).
Results are displayed according to the Base mode.
In Dec base mode:
0b10+0hF+10 ¸ 27
In Bin base mode:
0b10+0hF+10 ¸ 0b11011
In Hex base mode:
0b10+0hF+10 ¸ 0h1B