Evaluating expressions, Iaaoi – HP 39g Graphing Calculator User Manual
Page 45
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Evaluating expressions
In aplets
In the Symbolic view, a variable is a symbol only, and does
not represent one specific value. To evaluate a function in
Symbolic view, press I Will If a function calls another
function, then IWHI resolves all references to other functions
in terms of their independent variable.
1
.
2
.
Choose the Function
aplet.
APLET
Select
Function
jFUNCTION SVMSDLIC VIEWS
iaaoi
F2iX>=
F3<X)=
F4iX)=
F5CX)=
iBii'UBiranw
Enter the expressions in
the Function aplet’s Symbolic view.
[
alpha
¡A
fALPHA|B
fALPHAlFl [I]i
[ALPHA I
F2
Q]
3. Highlight F3(X).
a
4. Press IWiW
Note how the values for
F1(X) and F2(X) are
substituted into F3(X).
^W
functiun
svmculic
views
vFl<;'i>=fl* *XS
v'F2<:«:>=B
*'F3<H>=F1 tK;'+F2<X's
F5CK>=
¥
BUiitflB5M!iaiiiwiiiiiMiH!iiiaiiiUtf^^
KFUNCTIUN 5TMEDLIC VIEWS
*'FK!0=fl»X =
*'F
2
f>i>=B
F3<X>=FUX)+F2CX>
F4(.X) =
F5(X>=
■uanKHiiit—■Hiiiiaiimn
FUNCTIUN SVMEDLIC VIEWS
kFKX>=fl*X =
k'F2i:X)=B
*1
F3CX.>=fi*X=+B
F4CXS=
F5<X>=
■UJUBftliaM—iilllil8IIJtf;l»l
In HOME
You can also evaluate any expression in HOME by entering it
into the edit line and pressing |
enter
].
For example, define F4 as below. In HOME, type
F4
{
9
) and
press
I
ENTER
I
. This evaluates the expression, substituting
9
in
place of
X
into
F4.
^»FUNCTIUN SVMEDLIC VIEW®
-'Fl<X>=fl*X =
vF2<X;i=B
^F3<X)=fl»Xa+B
■ ^F4<X>=3*Xa+2*X+l
^FUNCTION*
F4C9)
262
Aplets and their views
2^3