HP HP-67 User Manual

Display Control 47
However, multiplying again by 10 causes the exponent to shift to
another multiple of three and the decimal point to move to the units
position. Since you specified ENG 2 earlier, the HP-67 maintains two
significant digits after the first one when you multiply by 10:
Press Display
103 1.23 -03| Decimal point shifts.
Power of 10 shifts to
1073, Display maintains
two significant digits
after the first one.
Automatic Display Switching
The HP-67 switches the display from fixed point notation to full
scientific notation (SCI 9) whenever the number is too large or too
small to be seen with a fixed decimal point. This feature keeps you
from missing unexpectedly large or small answers. For example, if
you try to solve (.05)% in normal FIX 2 display, the answer is auto-
matically shown in scientific notation.
Press Display
@ Ex
05
30 1.250000000-04] Display automatically
switched to SCI 9 to
show answer.
Normal FIX 2 display.
After automatically switching from fixed to scientific, when a new
number is keyed in or (€] is pressed the display automatically reverts
back to the fixed point display originally selected.

HP HP-67 Specifications

General

Introduced	1976
Programming Steps	224
Memory Registers	26
Type	Programmable
Manufacturer	Hewlett-Packard (HP)
Display	LED (red)
Programming	Keystroke
Power	Rechargeable battery pack
Logic	RPN (Reverse Polish Notation)
Battery	Rechargeable battery pack