HP 25 User Manual

Appendix B
Improper Operations
If you attempt a calculation containing an improper operation-
say, division by zero-the display will showl Error I. To clear,
press
ED .
The following are improper operations:
El , where x = 0
W, wherey ~ 0
0 , wherex < 0
I Vx I, where x = 0
O£ru ' where x ~ 0
DnJ ' where x ~ 0
LiiI!Q ' where Ixl is > 1
[COil] , where Ix l is > 1
mEl , where x = 0
I}] , where n ~ 0
~ , where n ~ 1
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HP 25 Specifications

General

Power Source	Rechargeable battery pack
Programming Steps	49
Release Year	1975
Functions	Trigonometric, logarithmic, statistical
Type	Scientific
Dimensions	148 x 80 x 14 mm