C: Operating Limits - HP 46 Operating Manual

Appendix C
Operating Limits
Calculator Range
The HP-46 handles numbers up to 10!°°. Calculations or data entries
exceeding this range are printed (and displayed) as 9.999999999 99.
The calculator also handles numbers as small as 10°°. Calculations or
data entries exceeding this range are printed (and displayed) as zero.
Accuracy
The accuracy of the HP-46 varies according to the operation being
performed. Arithmetic operations and simple functions (+, —, x, =, 1/x,
VX, n!, %, A%, x?,) are accurate to within +1 count in the tenth (least
significant) digit.
The accuracy of the remaining operations can be expressed in terms of
the original number. For example, if you calculate the natural log of 5,
your answer would be 1.609437912. This answer is actually the natural
log of some number between 4.999999998 and 5.000000002. It is
accurate then, for the original number +2 counts (N=2 for LN; see table
below) in the tenth digit.
All operations are accurate for the original number *N counts in the
tenth digit. The values for N for each operation are listed below:
Operation Value of N
Ln, Log, eX 2
Trig Functions 3
To Pol, To Rec 3
10% 7 for x
X 3 for £x?, and 2 for 2 x
yX 4 for y, and 7 for x
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