HP 48gII Graphing, 50g Graphing manual ΣX2, Access …µWSLOG, Log4 ... log1, Access …µΣX Input/Output

Code Description

5A Deep Sleep wakeup (for example, $, Alarm).

6Not used

7A 5nibble word (CMOS test word) in RAM was corru pt. (This word is checked on every interrupt, but it is used only as an indicator of potentially corrupt RAM.)

8Not used

9The alarm list is corrupt.

A System RPL jump to #0.

BThe card module was removed (or card bounce).

CHardware reset occurred (for example, an electrostatic discharge or user reset)

DAn expected System (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: …µWSLOG

Flags: Date Format (–42)

Input/Output:

		Level 1/Argument 1	Level 4/Item 1 ... Level 1/Item 4
		→	“log4” ... “log1”
ΣX	Command
Type:
Description:	Sum of xValues Command: Sums the values in the independent variable column of the current
	statistical matrix (reserved variable ΣDAT).

The independentvariable column is specified by XC OL and is stored as the first parameter in the reserved variable ΣPAR. The default independentvariable column number is 1.

Access: …µΣX

Input/Output:

		Level 1/Argument 1	Level 1/Item 1
			→	xsum
	NΣ, XCOL,
See also:		ΣXY, ΣX2, ΣY, ΣY2
ΣX2	Command
Type:
Description:	Sum of Squares of xValues Command: Sums the squares of the values in the independent
	variable column of the current statistical matrix (reserved variable ΣDAT).
	The independentvariable column is specified by XC OL and is stored as the first parameter in the
	reserved variable ΣPAR. The default independentvariable column number is			1.

Full Command and Function Reference 3275