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File name: hp 12c_user's guide_English_HDPMBF12E44 Page: 181 of 209
Printered Date: 2005/7/29 Dimension: 14.8 cm x 21 cm
Appendix C
Error Conditions
Some calculator operations cannot be performed under certain conditions (for
example,
z
when x = 0). If you attempt such an operation under these conditions,
the calculator will display the word
Error
followed by a digit,
0
through
9
. Listed
below are operations that cannot be performed under the conditions specified. The
symbols x and y represent the number in the X- and Y-registers, respectively, when
the operation key is pressed.
Error 0: Mathematics
Operation Condition
z
x = 0
y
x = 0
r
x < 0
°
x
≤
0
q
y = 0 and x
≤
0
y < 0 and x is noninteger.
à
y = 0
Z
y = 0
?z
(0 through 4) x = 0
e
x is noninteger
x < 0