Texas Instruments TI-80 - Evaluating Y= Functions in Expressions

Function Graphing 4-7
You can the calculate the value of a Y= function at a specified value of X.
To display the
Y=
list, press
(
. Enter these functions for
Y1
,
Y2
, and
Y3
:
X
2
,
X+2
, and
Y1(Y2(X))
.
@ a
¸
@ «
2
¸
2 G
1
c 2 G
2
c
@ d d
To evaluate the functions, first specify the value of X. Note
that X may be a list.
2 . M 2 G
2
c
3
d
¸
2 G
1
c 2 G
2
c
3
d d
¸
2 G
3
c 2 [
1
, 2 , 3
2 \
d
¸
You can also evaluate functions without using parentheses by
storing a value to X.
3
§ @
¸
2 G
1
¸
Evaluating Y= Functions in Expressions
Entering the
Functions in the
Y= List

Evaluating
Functions

Evaluating
Functions
without
Parentheses
