HP 48GII

3-200 Full Command and Function Reference
Code Description
7 A 5-nibble word (CMOS test word) in RAM was corrupt. (This word is checked
on every interrupt, but it is used only as an indicator of potentially corrupt RAM.)
8 Not used
9
T
he alarm list is corru
p
t.
A
S
y
stem RPL
j
um
p
to #0.
B
T
he card module was removed
(
or card bounce
)
.
C Hardware reset occurred
(
for exam
p
le, an electrostatic dischar
g
e or user reset
)
D
A
n ex
p
ected S
y
stem
(
RPL
)
error handler was not found in runstream
The date and time stamp (date time) part of the log may be displayed as 00…0000 for one of three
reasons:
• The system time was corrupt when the stamp was recorded.
• The date and time stamp itself is corrupt (bad checksum).
• Fewer than four warmstarts have occurred since the log was last cleared.
Access: …µ
WSLOG
Flags: Date Format (-42)
Input/Output:
Level 1/Argument 1 Level 4/Item 1 ... Level 1/Item 4
→
“log
4
” ... “log
1
”
ΣX
Type: Command
Description: Sum of x-Values Command: Sums the values in the independent-variable column of the current
statistical matrix (reserved variable ΣDAT).
The independent-variable column is specified by XCOL and is stored as the first parameter in
the reserved variable ΣPAR. The default independent-variable column number is 1.
Access: …µΣ
X
Input/Output:
Level 1/Argument 1 Level 1/Item 1
→
x
sum
See also: NΣ, XCOL, ΣXY, ΣX2, ΣY, ΣY2
ΣX2
Type: Command
Description: Sum of Squares of x-Values Command: Sums the squares of the values in the independent-
variable column of the current statistical matrix (reserved variable ΣDAT).
The independent-variable column is specified by XCOL and is stored as the first parameter in
the reserved variable ΣPAR. The default independent-variable column number is 1.
Access: …µΣ
X2