HP 48GII

3-192 Full Command and Function Reference
Γ
z
2
---
⎝⎠
⎛⎞
z
2
---1–
⎝⎠
⎛⎞
!=
Input/Output:
L
3
L
2
L
1
L
3
L
2
L
1
obj
3
obj
2
obj
1
→
obj
1
obj
3
obj
2
See also: OVER, PICK, ROLL, ROLLD, SWAP, ROT
UNTIL
Type: Command
Description: UNTIL Command: Starts the test clause in a DO … UNTIL … END indefinite loop structure.
See the DO entry for more information.
Access: !°
BRANCH DO UNTIL ( °is the left-shift of the Nkey).
Input/Output: None
See also: DO, END
UPDIR
Type: Command
Description: Up Directory Command: Makes the parent of the current directory the new current directory.
UPDIR has no effect if the current directory is HOME.
Access: !§
( §is the left-shift of the Jkey).
Input/Output: None
See also: CRDIR, HOME, PATH, PGDIR
UTPC
Type: Command
Description: Upper Chi-Square Distribution Command: Returns the probability utpc(n, x) that a chi-square
random variable is greater than x, where n is the number of degrees of freedom of the
distribution.
The defining equations are these:
• For x ≥ 0:
utpc n x,()
1
2
n
2
---
Γ
n
2
---
()
----------------
t
n
2
---1–
e
t
2
---
–
⋅ td
x
∞
∫
=
• For x < 0:
u
t
pc n
x
),()1=
For any value z, , where ! is the factorial command.
The value n is rounded to the nearest integer and, when rounded, must be positive.
Access: !´
L PROBABILITY L UTPC ( ´ is the left-shift of the Pkey).
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
n x
→
utpc(n,x)
See also: UTPF, UTPN, UTPT
UTPF
Type: Command