HP 33S - Contents

Operation Index
G–17
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
Name Keys and Description Page 
TANH
¹ : q
Hyperbolic
tangent.
Returns tanh x.
4–6 1
VIEW variable
º È
variable
Displays the labeled contents of
variable without recalling the
value to the stack.
3–3
12–13
t
Evaluates the displayed equation. 6–12
XEQ label
t
label
Executes the program identified
by label.
13–2
x
2
=
Square of x. 4–2 1
x
3
¹ @
Cube of x. 4–2 1
x
?
Square root of x. 4–2 1
3
x
¹ \
Cube root of x. 4–2 1
X
y
'
The x
th
root of y. 4–2 1
x
º (
{

}
Returns the mean of x values:
Σ
x
i
÷
n.
11–4 1
x
ˆ
º %
{

ˆ
}
Given a y–value in the X–register,
returns the x–estimate based on
the regression line:
x
ˆ
= (y – b)
÷
m.
11–11 1
x!
¹ *
Factorial (or gamma).
Returns (x)(x – 1) ... (2)(1), or
Γ
(x
+ 1).
4–14 1
X ROOT
'
The argument
1
root of
argument
2
.
6–15 2
x
w Returns weighted mean of x
values: (
Σ
y
i
x
i
)
÷ Σ
y
i
.
11–4 1