Hewlett-Packard F2226A - 48GII Graphic Calculator User's Manual
Download Operation & user’s manual of HP 48gII Calculator for Free or View it Online on All-Guides.com.
Brand: HP
Category: Calculator
Type: Operation & user’s manual
Model: HP 48gII , HP F2226A - 48GII Graphic Calculator
Pages: 864 (9.97 Mb)
Page 21-50
While this simple construct works fine when your function has only two
branches, you may need to nest IF…THEN…ELSE…END constructs to deal
with function with three or more branches. For example, consider the
function
−
<≤
<≤
<≤−
<
=
elsewhere
xifx
xifx
xifx
xifx
xf
,2
153),exp(
35),sin(
53,1
3,
)(
2
3
π
π
Here is a possible way to evaluate this function using IF… THEN … ELSE …
END constructs:
IF x<3 THEN
x
2
ELSE
IF x<5 THEN
1-x
ELSE
IF x<3π THEN
sin(x)
ELSE
IF x<15 THEN
exp(x)
ELSE
-2
END
END
END
END
A complex IF construct like this is called a set of nested
IF … THEN … ELSE …
END constructs.
A possible way to evaluate f3(x), based on the nested IF construct shown
above, is to write the program: