Some Examples Of Saved Aplets - HP 39gs Master Manual

S o m e e x a m p l e s
S o m e e x a m p l e s
The Triangles aplet
In the view,
APLET
name of "Triangles". Now
The theta character can be obtained from the keyboard on the zero
button using . Change into the
ALPHA
use another mode). By changing into the
Some users choose to use the letter
The Prob. Distributions aplet
In the view,
APLET
name of "Prob. Distr.".
This aplet is for use by students studying probability distribution functions, and contains formulas that can be
used to perform calculations on the Binomial, Poisson, Exponential and Normal distributions. You can adapt
it to the requirements of your particular course.
Firstly, the aplet and enter the formulas shown below.
E1: V=N!/((N-R)!*R!)*P^R*(1-P)^(N-R)
E2: V= (J=A,B, N!/((N-J)!*J!)*P^J*(1-P)^(N-J))
E3: P=e^-M*M^K/K!
E4: P= (J=A,B,e^-M*M^J/J!)
E5: P= (A,B,K*X^3*(2-X),X)
E6: P=e^-(K*A)-e^(-K*B)
E7: P=UTPN(M, S
E8: P=1-UTPN(M,S
E9: P=UTPN(M,S
E0: P=UTPN(M,S
These formulas can be used in the
earlier. Some explanations and examples are given on the next page.
Note that equations
E1
allows backward solving to solve for
direction. The drawback of this is that values of
in errors. However, values like this should probably be done using a Normal approximation anyway. If this is
a problem, replace the
because, for this particular distribution, the variable
individual success".
o f s a v e d a p l e t s
o f s a v e d a p l e t
the Solve aplet and
it and enter the formulas shown.
MODES
NUM
for degrees rather than theta because theta can be mistaken for an
D
the Solve aplet and
2 ,X)
2 ,X)
2 ,A)-UTPN(M, S
2 ,M-K)+ UTPN(M,S
view to solve problems involving the probability distributions listed
NUM
and use the expression
E2
. Using
N
. Additionally, the letter
COMB(N,R)
s
it under the new
view and set the angle mode to Degrees (unless you want to
view you can now use this to solve problems in right triangles.
it under the new
2 ,B)
2 ,M+K)
instead of
N!/((N-R)!*R!)
only allows the formula to be used in a forward
COMB(N,R)
above roughly 75 will cause overflow internally and result
N
for value is used in these two equations
V
has the specific meaning of "the probability of
P
232
because doing this
COMB(N,R)
.
O