Reference Guide

3-276 Full Command and Function Reference
Access: …µΣ X 2
Input/Output:
Level 1/Argument 1 Level 1/Item 1
→
Sum of X
2
See also: NΣ, ΣX, XCOL, ΣXY, ΣY, ΣY2
ΣX^2
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. ΣX^2 is provided for compatibility with the HP
28. ΣX^2 is the same as ΣX2; see its listing for details.
Access:
XCOL
Type: Command
Description: Independent Column Command: Specifies the independent-variable column of the current
statistics matrix (reserved variable ΣDAT).
The independent-variable column number is stored as the first parameter in the reserved variable
ΣPAR. The default independent-variable column number is 1.
XCOL will accept a noninteger real number and store it in ΣPAR, but subsequent commands that
utilize the XCOL specification in ΣPAR will cause an error.
Access: …µ XCOL
Input/Output:
Level 1/Argument 1 Level 1/Item 1
n
col
→
See also: BARPLOT, BESTFIT, COLΣ, CORR, COV, EXPFIT, HISTPLOT, LINFIT, LOGFIT, LR,
PREDX, PREDY, PWRFIT, SCATRPLOT, YCOL
XGET
Type: Command
Description: XModem Get Command: Retrieves a specified filename via XMODEM from another calculator.
The other calculator needs to be in server mode for the operation to work ( G I / O FUNCTIONS
START SERVER ).
Access: …µ XGET
Input/Output:
Level 1/Argument 1 Level 1/Item 1
'name'
→
See also: BAUD, RECN, RECV, SEND, XRECV, XSERV, XPUT
XMIT
Type: Command
Description: Serial Transmit Command: Sends a string serially without using Kermit protocol, and returns a
single digit that indicates whether the transmission was successful.
XMIT is useful for communicating with non-Kermit devices such as RS-232 printers.
If the transmission is successful, XMIT returns a 1. If the transmission is not successful, XMIT
returns the unsent portion of the string and a 0. Use ERRM to get the error message.