HP 33s - Manual (Page 369)

Operation Index G–17
Name Keys and Description Page ¼
TAN U Tangent. Returns tan x. 4–3 1
TANH { U Hyperbolic
tangent.
Returns tanh x.
4–6 1
VIEW variable | Š variable
Displays the labeled contents of
variable without recalling the
value to the stack.
3–3
12–13
X Evaluates the displayed equation. 6–12
XEQ label X label
Executes the program identified
by label.
13–2
x
2 ! Square of x. 4–2 1
x 3 { $ Cube of x. 4–2 1
x # Square root of x. 4–2 1
3
x { @ 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
xˆ
| {
º
ˆ
}
Given a y–value in the X–register,
returns the x–estimate based on
the regression line:
xˆ = (y – b) ÷
m.
11–10 1
x! {  Factorial (or gamma).
Returns (x)(x – 1) ... (2)(1), or Γ (x
+ 1).
4–14 1
XROOT The argument
1
root of
argument
2
.
6–15 2