HP 33s Annunciators
AnnunciatorMeaning

Chapter

 

 

 

 

 

£

 

The "£(Busy)" annunciator blinks while an

 

 

 

operation, equation, or program is

 

 

 

executing.

 

c

 

When in Fraction–display mode (press {

5

d

 

‹), 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.

 

¡

 

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

6

 

 

calculator is evaluating an expression or

 

 

 

executing an equation.

 

0 1 2 3 4

Indicates which flags are set (flags 5

13

 

 

through 11 have no annunciator.

 

RAD or

GRAD

Radians or Grad angular mode is set. DEG

4

 

 

mode (default) has no annunciator.

 

HEX OCTBIN

Indicates the active number base. DEC

10

 

 

(base 10, default) has no annunciator.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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