Calculator User Manual

Chapter 20: A to Z Function and Instruction Reference
341
20ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 341 of 11820ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 341 of 118
Radian
†
- m
Radian
Sets radian angle mode.
In
Radian
angle mode:
sin (
p
/2)
b
1
sin 90
b
.893996663601
Radian entry:
r
MATH ANGLE menu
number
r
or
(
expression
)
r
Designates a real
number
or
expression
as radians,
regardless of the angle mode setting.
In
Degree
angle mode:
cos (
p
/2)
b
.999624216859
cos (
p
/2)
r
b
0
list
r
Designates each element in a real
list
as radians.
cos {
p
/2,
p
}
r
b
{0
L
1}
rand
MATH PROB menu
rand
Returns a random number between 0 and 1.
To control a random number sequence, first store an
integer seed value to
rand
(such as
0
¶
rand
).
You may have different results for the first
two examples:
rand
b
.943597402492
rand
b
.146687829222
0
¶
rand:rand
b
.943597402492
0
¶
rand:rand
b
.943597402492
randBin(
MATH PROB menu
(randBi shows on menu)
randBin(
#ofTrials
,
probabilityOfSuccess
,
#ofSimulations
)
Returns a list of random integers from a binomial
distribution, where
#ofTrials ‚
1 and
0
 probabilityOfSuccess 
1. The
#ofSimulations
is an
integer
‚
1 that specifies the number of integers
returned in the list.
A seed value stored to
rand
also affects
randBin(.
1
¶
rand:randBin(5,.2,3)
b
{0 3 2}
randBin(
#ofTrials
,
probabilityOfSuccess
)
Returns a single random integer.
0
¶
rand:randBin(5,.2)
b
1