Reference Guide

3-214 Full Command and Function Reference
• B and Z must both be vectors or both be matrices.
• B and Z must have the same number of columns if they are matrices.
RSD is typically used for computing a correction to Z, where Z has been obtained as an
approximation to the solution X to the system of equations AX = B.
Access: !Ø OPERATIONS L RSD ( Ø is the left-shift of the 5key).
!´ MATRIX L RSD ( ´ is the left-shift of the Pkey).
Input/Output:
Level 3/Argument 1 Level 2/Argument 2 Level 1/Argument 3 Level 1/Item 1
[ vector ]
B
[[ matrix ]]
A
[ vector ]
Z
→
[ vector ]
B–AZ
[[ matrix ]]
B
[[ matrix ]]
A
[[ matrix ]]
Z
→
[[ matrix ]]
B–AZ
See also: DET, IDN
RSWP
Type: Command
Description: Row Swap Command: Swaps rows i and j of a matrix and returns the modified matrix, or swaps
elements i and j of a vector and returns the modified vector.
Row numbers are rounded to the nearest integer. Vector arguments are treated as column vectors.
Access: !Ø CREATE ROW L RSWP ( Ø is the left-shift of the 5key).
!´ MATRIX ROW L RSWP ( ´ is the left-shift of the Pkey).
Input/Output:
Level 3/Argument 1 Level 2/Argument 2 Level 1/Argument 3 Level 1/Item 1
[[ matrix ]]
1
n
row i
n
row j
→
[[ matrix ]]
2
[ vector ]
1
n
element i
n
element j
→
[ vector ]
2
See also: CSWP, ROW+, ROW–
RULES
Type: Command
Description: Displays a list of names of individuals involved with the HP 49G calculator project.
Access: …µ RULES
Input/Output: None
R→B
Type: Command
Description: Real to Binary Command: Converts a positive real to its binary integer equivalent.
For any value of n ≤ 0, the result is # 0. For any value of n ≥ 1.84467440738E19 (base 10), the
result is # FFFFFFFFFFFFFFFF (base 16).
Access: …ã R → B (ã is the right-shift of the 3key).
Flags: Binary Integer Wordsize (–5 through –10), Binary Integer Base (–11, –12)
Input/Output:
Level 1/Argument 1 Level 1/Item 1
n
→
#n
See also: B→R