Keying In Numbers; Making Numbers Negative; Exponents Of Ten - HP 33s User Manual

Keying in Numbers

You can key in a number that has up to 12 digits plus a 3–digit exponent up to
±499. If you try to key in a number larger than this, digit entry halts and the
annunciator briefly appears.
If you make a mistake while keying in a number, press
delete the last digit, or press

Making Numbers Negative

z
The key changes the sign of a number.
To key in a negative number, type the number, then press
To change the sign of a number that was entered previously, just press
(If the number has an exponent,
non–exponent part of the number.)

Exponents of Ten

Exponents in the Display
Numbers with exponents of ten (such as 4.2
preceding the exponent (such as 
A number whose magnitude is too large or too small for the display format will
automatically be displayed in exponential form.
For example, in FIX 4 format for four decimal places, observe the effect of the
following keystrokes:
Keys: Display:
.000062
Ï
Ï
.000042
1–14
Getting Started
Å
to clear the whole number.
 _

 

~
z
affects only the mantissa — the
–5
10 ) are displayed with an
).

Description:
Shows number being entered.
Rounds number to fit the display
format.
Automatically uses scientific notation
because otherwise no significant
digits would appear.
â
to backspace and
z
.
z
.
