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Undo also recovers the values of a register, or registers, just
cleared using the CLEAR menu, if the undo operation immedi-
ately follows the cleared operation.
Using Menus
Sixteen of the keys are menu keys, keys which permit access to
more functions. These functions are displayed in Table 2.
Table 2 Menu Functions
Menu Name
L.R.
x y
,
s,σ
CONST
SUMS
BASE
INTG
LOGIC
FLAGS
x?y
6
Getting Started
Menu Description
Linear regression and estimation.
¹%
Arithmetic mean of statistical x– and
¹(
y–values; weighted mean of statistical x–values.
Sample and population standard deviation.
º+
Menu of 41 physics constants.
¹Ü
Statistical data summations.
º.
Base conversions (Base 2, 8, 10 and 16).
º¶
Sign value, integer division, remainder,
¹g
greatest integer, fractional part, integer part.
Logical operators for base-n numbers.
¹>
Functions to set, clear, and test flags.
¹·
Comparison tests of the X–and
¹¬
Y–registers.
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