WP WP-34S, Owner'S Manual

Page: 49 / 103

WP 34S Owner‘s Manual
Edition 2.2 Page 49 of 103
Name Keys to press in modes Remarks
Norml
 … 
DECM
Normal distribution with an arbitrary mean µ
specified in J and standard deviation
σ
in K :
Norml
P
20
returns
 
 
2
2
2
2
1


 



x
N
e x f
,
Norml returns
 





 
 


x
x F
N
. See below
for the standard normal distribution
Φ
.
Norml
P
Norml
–1
 … 
DECM
Returns x for a given probability F
N
in X , mean µ
in
J
, and standard deviation
σ
in
K
21
.
NOT
 
Integer Works in analogy to AND.
nROW
 … 
DECM
Takes a matrix descriptor in X , saves it in L , and
returns the number of rows in this matrix.
n΢

…

DECM
Recalls the number of accumulated data points.
Necessary for basic statistics.
ODD?
 … 
\

Checks if x is integer and odd.
OFF

PRG
Inserts a step to turn your WP 34S off under
program control.
OR

\

Works in analogy to AND.
P - R
PERM

DECM
Returns the number of possible arrangements of
y items taken x at a time. No item occurs more
than once in an arrangement, and different or-
ders of the same
x items are counted separately.
Formula:
x y x y
C x P
, ,
!
 
, compare COMB.
P
n
 … 
DECM
Legendre's polynomials:
 
 
 
n
n
n
n
n
x
dx
d
n
x P 1
! 2
1
2
  
with n in Y , solving
the differential equation
 
     
0 1 1
2
  




 
x f n n x f
dx
d
x
dx
d
.
20
Norml
P
corresponds to NORMDIST(
x;
µ
;
σ;
0 ) and Norml to NORMDIST(
x;
µ
;
σ;
1 ) in MS Excel.
21
This corresponds to NORMINV( F
N
; µ ;
σ
) in MS Excel.