Reference Guide
Full Command and Function Reference 3-47
Input/Output:
Level 1/Argument 1 Level 1/Item 1
→
x
covariance
See also: COLΣ, CORR, PCOV, PREDX, PREDY, XCOL, YCOL
CR
Type: Command
Description: Carriage Right Command: Prints the contents, if any, of the printer buffer.
When printing to the serial port (flag –34 set), CR sends to the printer a string that encodes the
line termination method. The default termination method is carriage-return/linefeed. The string is
the fourth parameter in the reserved variable PRTPAR.
When using the HP 82240B Infrared Printer (flag –34 clear), CR leaves the printhead on the right
end of the just printed line.
Access: …µ
CR
Flags: I/O Device (–33), Printing Device (–34), Double-Spaced Printing (–37), I/O Device for Wire (–
78)
Input/Output: None
See also: DELAY, OLDPRT, PRLCD, PRST, PRSTC, PRVAR, PR1
CRDIR
Type: Command
Description: Create Directory Command: Creates an empty subdirectory with the specified name in the current
directory.
CRDIR does not change the current directory; evaluate the name of the new subdirectory to make
it the current directory.
Access: !°
MEMORY DIRECTORY CRDIR
( °is the left-shift of the Nkey).
Input/Output:
Level 1/Argument 1 Level 1/Item 1
'global'
→
See also: HOME, PATH, PGDIR, UPDIR
CROSS
Type: Command
Description: Cross Product Command: CROSS returns the cross product C = A
×
B of vectors A and B.
The arguments must be vectors having two or three elements, and need not have the same
number of elements. (The calculator automatically converts a two-element argument [ d
1
d
2
] to a
three-element argument [ d
1
d
2
0 ].)
Access: !´
VECTOR CROSS
( ´ is the left-shift of the Pkey).
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
[ vector ]
A
[ vector ]
B
→
[ vector ]
A
× B
See also: CNRM, DET, DOT, RNRM
CSWP
Type: Command
Description: Column Swap Command: Swaps columns i and j of the argument matrix and returns the modified
matrix, or swaps elements i and j of the argument vector and returns the modified vector.
Column numbers are rounded to the nearest integer. Vector arguments are treated as row vectors.