Reference Guide

Full Command and Function Reference 3-267
Input/Output:
Level 3/Argument 1 Level 2/Argument 2 Level 1/Argument 3 Level 1/Item 1
m v x
→
utpn(m,v,x)
See also: UTPC, UTPF, UTPT
UTPT
Type: Command
Description: Upper Student’s t Distribution Command: Returns the probability utpt(n, x) that a Student’s t
random variable is greater than x, where n is the number of degrees of freedom of the
distribution.
The following is the defining equation for all x:
utpt n x,( )
Γ
n 1+
2
------------
 
 
Γ
n
2
---
 
 
nπ
-----------------------
1
t
2
n
----+
 
 
n 1+
2
------------–
td
x
∞
∫
=
For any value z,
Γ
z
2
---
 
 
z
2
--- 1–
 
 
!=
, where ! is the factorial command.
The value n is rounded to the nearest integer and, when rounded, must be positive.
Access: !´ L PROBABILITY L UTPT ( ´ is the left-shift of the Pkey).
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
n x
→
utpt(n,x)
See also: UTPC, UTPF, UTPN
UVAL
Type: Function
Description: Unit Value Function: Returns the numerical part of a unit object.
Access: …Û TOOLS UVAL (Û is the right-shift of the 6key).
Flags: Numerical Results (–3)
Input/Output:
Level 1/Argument 1 Level 1/Item 1
x_unit
→
x
'symb'
→
'UVAL(symb)'
See also: CONVERT, UBASE, UFACT, →UNIT
V→
Type: Command
Description: Vector/Complex Number to Stack Command: Separates a vector or complex number into its
component elements.
For vectors with four or more elements, V→ executes independently of the coordinate system
mode, and always returns the elements of the vector to the stack as they are stored internally (in
rectangular form). Thus, V→ is equivalent to OBJ→ for vectors with four or more elements.
Access: !´ VECTOR V → ( ´ is the left-shift of the Pkey).
Flags: Coordinate System (–15 and –16)