Appendix C: Error Conditions; Error 0: Mathematics - HP 12c User Manual

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
z
y
r
°
q
à
Z
?z(0 through 4)
e
File name: hp 12c_user's guide_English_HDPMBF12E44
Printered Date: 2005/7/29
Appendix C
Error Conditions
Condition
x = 0
x = 0
x < 0
x ≤ 0
y = 0 and x ≤ 0
y < 0 and x is noninteger.
y = 0
y = 0
x = 0
x is noninteger
x < 0
181
Page: 181 of 209
Dimension: 14.8 cm x 21 cm