Texas Instruments TI-86 - Manual (Page 338)

326
Chapter 20: A to Z Function and Instruction Reference
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 326 of 118
Not equal to: ƒ
TEST menu
numberA ƒ numberB
matrixA ƒ matrixB
vectorA ƒ vectorB
stringA ƒ stringB
Tests whether the condition argumentA ƒ argumentB
is true or false. Numbers, matrices, and vectors can be
real or complex. If complex, the magnitude (modulus)
of each element is compared. Strings are case-sensitive.
• If true (argumentA ƒ argumentB), returns 1 .
• If false (argumentA = argumentB), returns 0 .
2+2 ƒ3+2 b 1
2+(2 ƒ3)+2 b 5
[1,2] ƒ[3 N 2, L 1+3] b 0
"A" ƒ"a" b 1
listA ƒ listB
Returns a list of 1 s and/or 0 s to indicate if each element
in listA is ƒ the corresponding element in listB.
{1,5,9} ƒ{1, L 6,9} b {0 1 0}
nPr
MATH PROB menu
items nPr number
Returns the number of permutations of items ( n ) taken
number ( r ) at a time. Both arguments must be real
nonnegative integers.
5 nPr 2 b 20
Ý
BASE TYPE menu
integer Ý
Designates a real integer as octal, regardless of the
number base mode setting.
In Dec number base mode:
10Ý b 8
10Ý+10 b 18