Texas Instruments TI-86 Manual Book page 303

==
Equal to:
TEST menu
The == operator is used to
compare arguments, while
= is used to assign a value
or expression to a variable.
Euler
† graph format screen
(scroll down to
second screen)
eval
MATH MISC menu
numberA == numberB
matrixA == matrixB
vectorA == vectorB
stringA stringB
==
Tests whether the condition argumentA == 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 = argumentB), returns
If false (argumentA ƒ argumentB), returns
listA == listB
Returns a list of 1 s and/or
in listA is = the corresponding element in listB.
Euler
In DifEq graphing mode, uses an algorithm based on the
Euler method to solve differential equations. Typically,
is less accurate than
Euler
much quicker.
eval xValue
Returns a list containing the
selected functions evaluated at a real xValue.
Chapter 20: A to Z Function and Instruction Reference
1 .
0 .
0 s to indicate if each element
but finds the solutions
RK
values of all defined and
y
2+2==2+2 b
2+(2==2)+2 b
1+3] b
N L
[1,2]==[3 2,
"A"=="a" b
6,9} b
L
{1,5,9}=={1,
Remember that built-in equation variables
and are case-sensitive:
y2
y1=x^3+x+5 b
y2=2 x b
eval 5 b
291
1
5
1
0
{1 0 1}
y1
Done
Done
{135 10}