HP 12C, User Manual

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Appendix D: Error Conditions 251
File name: HP 12c Pt Converted_user's guide_English_HDP0F123E02_080207 Page: 12 of 281
Printed Date: { 2007/8/2 Dimension: 14.8 cm x 21 cm
Error 1: Storage Register Overflow
Operation Condition
?+
(0 through 4)
?-
(0 through 4)
?§
(0 through 4)
?z
(0 through 4)
A
Magnitude of result is greater than
9.999999999×10
99
.
Error 2: Statistics
Operation Condition
Ö n (number in R
1
) = 0
 Σ x = 0
v
n = 0
n = 1
n
Σ
x
2
– (
Σ
x )
2
< 0
n
Σ
y
2
– (
Σ
y )
2
< 0
R
n = 0
n
Σ
x
2
– (
Σ
x )
2
= 0
Q
n = 0
n
Σ
y
2
– (
Σ
y)
2
= 0
R~
Q~
[ n
Σ
x
2
– (
Σ
x)
2
][ n
Σ
y
2
– (
Σ
y)
2
]
≤
0
Error 3: IRR
Refer to Appendix C.
Error 4: Memory
z
Attempting to enter more than 400 program lines.
z
Attempting to
i
to a program line that does not exist.
z
Attempting storage register arithmetic in R
5
through R
9
or R
.0
through R
.9
.
z
Too many open parentheses.