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13–8 Programming Techniques
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
Tests of Comparison (x
?
y, x
?
0)
There are 12 comparisons available for programming. Pressing
z
l
or
{
n
displays a. menu for one of the two categories of tests:
x
?
y for tests comparing x and y.
x
?
0 for tests comparing x and 0.
Remember that x refers to the number in the X–register, and y refers to the
number in the Y–register. These do not compare the variables X and Y.
Select the category of comparison, then press the menu key for the
conditional instruction you want.
The Test Menus
x
?
y x
?
0
{
≠
} for x
≠
y
?
{
≠
} for x
≠
0
?
{
≤
} for x
≤
y
?
{
≤
} for x
≤
0
?
{
<
} for x
<
y
?
{
/
} for x
<
0
?
{
>
} for x
>
y
?
{
>
} for x
>
0
?
{
≥
} for x
≥
y
?
{
≥
} for x
≥
0
?
{
/
} for x=y
?
{
/
} for x=0
?
If you execute a conditional test from the keyboard, the calculator will display
&
or
.
Example:
The "Normal and Inverse–Normal Distributions" program in chapter 16 uses
the x
<
y
?
conditional in routine T:
Program Lines: Description
.
.
.
!
ª
Calculates the correction for X
guess
.
!
!-
%
Adds the correction to yield a new X
guess
.
!
!
)