Name

Keys and Description

Page

¼

 

 

 

 

x w

Returns weighted mean of x

11–4

1

 

values: (Σyixi) ⎟ Σyi.

 

 

Displays the mean (arithmetic

11–4

 

 

average) menu.

 

 

x<> variable

Zx exchange.

3–6

 

 

Exchanges x with a variable.

 

 

x<>y

[x exchange y.

2–4

 

 

Moves x to the Y–register and y to

 

 

 

the X–register.

 

 

{n

Displays the "x?y" comparison

13–7

 

 

tests menu.

 

 

xy

{n{}

13–7

 

 

If xy, executes next program line;

 

 

 

if x=y, skips next program line.

 

 

xy?

{n{}

13–7

 

 

If xy, executes next program line;

 

 

 

if x>y, skips next program line.

 

 

x<y?

{n{<}

13–7

 

 

If x<y, executes next program line;

 

 

 

if xy, skips next program line.

 

 

x>y?

{n{>}

13–7

 

 

If x>y, executes next program line;

 

 

 

if xy, skips next program line.

 

 

xy?

{n{}

13–7

 

 

If xy, executes next program line;

 

 

 

if x<y, skips next program line.

 

 

x=y?

{n{/}

13–7

 

 

If x=y, executes next program line;

 

 

 

if xy, skips next program line.

 

 

o

Displays the "x?0" comparison

13–7

 

 

tests menu.

 

 

 

 

 

 

G–18Operation Index