Texas Instruments 83PL/CLM/1L1/V - 83 Plus Calc, Manual Book

Page: 96 / 827

TI-83 Plus Math, Angle, and Test Operations 93
With each
rand
execution, the TI-83 Plus generates the same random-
number sequence for a given seed value. The TI-83 Plus factory-set
seed value for
rand
is
0
. To generate a different random-number
sequence, store any nonzero seed value to
rand
. To restore the factory-
set seed value, store
0
to
rand
or reset the defaults (Chapter 18).
Note: The seed value also affects
randInt(
,
randNorm(
, and
randBin(
instructions.
nPr, nCr
nPr
(number of permutations) returns the number of permutations of
items
taken
number
at a time.
items
and
number
must be nonnegative integers.
Both
items
and
number
can be lists.
items nPr number
nCr
(number of combinations) returns the number of combinations of
items
taken
number
at a time.
items
and
number
must be nonnegative
integers. Both
items
and
number
can be lists.