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182 Appendix C: Error Conditions
File name: hp 12c_user's guide_English_HDPMBF12E44 Page: 182 of 209
Printered Date: 2005/7/29 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 B.
Error 4: Memory
z Attempting to enter more than 99 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
.