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2-2-4
Special Functions
u To delete a function
Example To delete the contents of function memory number 1
AK6(g)6(g)3(FMEM)
1(STO)bw
•Executing the store operation while the display is blank deletes the function in the
function memory you specify.
u To use stored functions
Example To store x
3
+ 1, x
2
+ x into function memory, and then graph:
y = x
3
+ x
2
+ x + 1
Use the following V-Window settings.
Xmin = – 4, Xmax = 4, Xscale = 1
Ymin = –10, Ymax = 10, Yscale = 1
!m(SET UP)ccc1(Y=)J
AvMd+bK6(g)6(g)3(FMEM)1(STO)bw(stores (x
3
+ 1))
JAvx+v1(STO)cw(stores (x
2
+ x))
JA!4(SKTCH)1(Cls)w
5(GRPH)1(Y=)
K6(g)6(g)3(FMEM)3(fn)b+
3(fn)cw
• For full details about graphing, see “5. Graphing”.
#You can also use a to store a function in
function memory in a program.
In this case, you must enclose the function
inside of double quotation marks.