HP 33s - Manual (Page 370)

G–18 Operation Index
Name Keys and Description Page ¼
x
w Returns weighted mean of x
values: (
Σy
i
x
i
) ÷ Σy
i
.
11–4 1
| Displays the mean (arithmetic
average) menu. 11–4
x<> variable | Z x exchange.
Exchanges x with a variable.
3–6
x<>y [ x exchange y.
Moves x to the Y–register and y to
the X–register.
2–4
{ n Displays the "x?y" comparison
tests menu. 13–7
x ≠y { n { ≠}
If x ≠y, executes next program line;
if x=y, skips next program line.
13–7
x ≤y? { n { ≤}
If x ≤y, executes next program line;
if x >y, skips next program line.
13–7
x<y? { n {<}
If x<y, executes next program line;
if x
≥y, skips next program line.
13–7
x>y? { n {>}
If x>y, executes next program line;
if x
≤y, skips next program line.
13–7
x ≥y? { n { ≥}
If x ≥y, executes next program line;
if x<y, skips next program line.
13–7
x=y? { n {/}
If x=y, executes next program line;
if x
≠y, skips next program line.
13–7
| o Displays the "x?0" comparison
tests menu. 13–7