HP 33s - Manual (Page 23)

Getting Started 1–7
Using Menus
There is a lot more power to the HP 33s than what you see on the keyboard. This is
because 14 of the keys are menu keys. There are 14 menus in all, which provide
many more functions, or more options for more functions.
HP 33s Menus
Menu
Name
Menu
Description
Chapter
Numeric Functions
L.R.
º
ˆ ¸ˆ
T P E
Linear regression: curve fitting and linear estimation.
11
x
,
y
º ¸ · º
Arithmetic mean of statistical x– and y–values;
weighted mean of statistical x–values.
11
s, σ
Uº U¸
σº σ¸
Sample standard deviation, population standard
deviation.
11
CONST Functions to use 40 physics constants—refer to
" Physics constants" on page 4–8. 4
SUMS Q;º;¸;º

;¸

;º¸
Statistical data summations.
11
BASE  % ! 
Base conversions (decimal, hexadecimal, octal, and
binary). 11
Programming Instructions
FLAGS    @
Functions to set, clear, and test flags. 13
x?y ≠ ≤ < > ≥ =
Comparison tests of the X–and Y–registers. 13
x?0 ≠ ≤ < > ≥ =
Comparison tests of the X–register and zero. 13