HP 48GII

3-138 Full Command and Function Reference
Access: !Ø OPERATIONS L RANK ( Ø is the left-shift of the 5key).
!´
MATRIX NORMALIZE L RANK ( ´ is the left-shift of the Pkey).
Flags: Singular Value (-54)
Input/Output:
Level 1/Argument 1 Level 1/Item 1
[[ matrix ]]
→
N
rank
See also: LQ, LSQ, QR
RANM
Type: Command
Description: Random Matrix Command: Returns a matrix of specified dimensions that contains random
integers in the range –9 through 9.
The probability of a particular nonzero digit occurring is 0.05; the probability of 0 occurring is
0.1.
Access: !Ø
CREATE LLRANM ( Ø is the left-shift of the 5key).
!´
MATRIX MAKE RANM ( ´ is the left-shift of the Pkey).
Input/Output:
Level 1/Argument 1 Level 1/Item 1
{ m n }
→
[[ random matrix ]]
m×n
[[ matrix ]]
m×n
→
[[ random matrix ]]
m×n
See also: RAND, RDZ
RATIO
Type: Function
Description: Prefix Divide Function: Prefix form of / (divide).
RATIO is identical to / (divide), except that, in algebraic syntax, RATIO is a prefix function,
while / is an infix function. For example, RATIO(A,2) is equivalent to A/2.
Access: …µ
RATIO
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
z
1
z
2
→
z
1
/z
2
[ array ] {[ matrix ]]
→
[[ array × matrix
–1
]]
[ array ] z
→
[ array/z ]
z 'symb'
→
'z/symb'
'symb' z
→
'symb/z'
'symb
1
' 'symb
2
'
→
'symb
1
/symb
2
'
#n
1
n
2
→
#n
3
n
1
#n
2
→
#n
3
#n
1
#n
2
→
#n
3
x_unit
1
y_unit
2
→
(x/y)_unit
1
/unit
2
x y_unit
→
(x/y)_1/unit
x_unit y
→
(x/y)_unit
'symb' x_unit
→
'symb/x_unit'
x_unit 'symb'
→
'x_unit/symb'
See also: /