HP HP-67 - Page 50

46 Display Control
Engineering notation is selected by pressing [ (ENG| . The first signifi-
cant digit is always present in the display. When you press (53
followed by a number key, you specify the number of additional
displayed digits after the first one. The decimal point always appears
in the display. For example:
Press Display
.000012345 .000012345
03 (eng 12.3 -06| Engineering notation dis-
play. Since you had
specified CEZ 2 in the
previous example, the
number appears here
rounded off to two sig-
nificant digits after the
omnipresent first one.
Power of 10 is proper
multiple of three.
653 3 12.35 -06] Display is rounded off to
third significant digit
after the first one.
[DSP I 12.34500000-06
€ER o Display rounded off to
first significant digit.
Notice that rounding can occur to the /eft of the decimal point, as in the
case of 0 specified above.
When engineering notation has been selected, the decimal point shifts
to show the mantissa as units, tens, or hundreds in order to maintain
the exponent of 10 as a multiple of three. For example, multiplying
the number now in the calculator by 10 causes the decimal point to
shift to the right without altering the exponent of 10:
Press Display
53 2 12.3 -06] ENG 2 display.
1063 123. -06| ENG 2 display.