A c c u r a c y / D i s p l a y
– Your calculator has
an eleven digit display. This is made up
of seven digits (normal display) and four
digits for the fraction. In a standard cal-
culation, each calculation is carried out
i n t e rnally to 10 digits and is rounded to
a 7-digit standard display. A 5/4 ro u n d-
ing technique is used to add 1 to the
least significant digit in the display if the
next non-displayed digit is five or more .
If this digit is less than five, no ro u n d i n g
o c c u r s .
“Error”
– When you make an incorrect
entry, or the answer is beyond the
range of the calculator, it will display
the word “
Error
.” To clear an error
condition you must hit the
[On/C]
but-
ton twice. At this point you must
determine what caused the error and
re-key the problem. An “Error” condi-
tion will also occur if you enter a
mathematical impossibility such as
division by zero.
Auto-Range
– If an “overflow” is creat-
ed because of an input and calculation
with small units that are out of the
standard 7-digit range of the display,
the answer will be automatically
expressed in the next larger units
(instead of showing “
Error
”) – i.e.,
10,000,000 millimeters cannot be dis-
A
PPENDIX
50 – HeavyCalc™
