Texas TI-86 用户手册
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 118
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 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.
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
integer seed value to
rand
(such as
0
¶
rand
).
You may have different results for the first
two examples:
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)
(randBi shows on menu)
randBin(
#ofTrials
,
probabilityOfSuccess
,
#ofSimulations
)
Returns a list of random integers from a binomial
distribution, where #ofTrials
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