Sharp el-9950

85
Chapter 4: Graphing Features
Example 3: A representation using the Web TYPE setting
Viewthesequence
u(n)
=
u(n-1) + 100
by comparing the sequence elements
u(n)
with
the predecessor elements
u(n-1)
.
 1. Press
@
f G
1
to select Web.
 2. Press
Y
and input the
equation in the
u(n)
line.
Because this is a recursive
representation, a value for
u(nMin)
must be input.
3. If the lower four lines still contain entries, move the cursor down
and delete them using
C
.
 4. Select
Z
A
1
fortheautomaticzoom
function in order to set suitable
window settings automatically.
Using
U
, you can now
read concrete values of the
sequence.