HP 33s - Manual (Page 28)

1–12 Getting Started
HP 33s Annunciators
Annunciator Meaning Chapter
£ The " £ (Busy)" annunciator blinks while an
operation, equation, or program is
executing.
c
d

When in Fraction–display mode (press {
‹ ), only one of the "c" or "d" halves
of the "cd"' annunciator will be turned on
to indicate whether the displayed
numerator is slightly less than or slightly
greater than its true value. If neither part of
"cd"' is on, the exact value of the fraction
is being displayed.
5
¡ Left shift is active. 1
¢ Right shift is active. 1
RPN Reverse Polish Notation mode is active. 1, 2
ALG Algebraic mode is active. 1, C
PRGM Program–entry is active. 12
EQN Equation–entry mode is active, or the
calculator is evaluating an expression or
executing an equation. 6
0 1 2 3 4 Indicates which flags are set (flags 5
through 11 have no annunciator. 13
RAD or GRAD Radians or Grad angular mode is set. DEG
mode (default) has no annunciator. 4
HEX OCT BIN Indicates the active number base. DEC
(base 10, default) has no annunciator. 10