HP 10s User Manual page 26

Press[2]to quit the data input operation without
storing the entered data values. Alternatively, press (1)
to clear the values but remain in data input mode.
@ Press [sii] to cancel data input.
@ In SD or REG mode, you cannot display or edit data
items once you change to another mode or choose a
different regression type (Lin, Log, Exp, Pwr,Inv, Quad).
m Regression-REG
Calculations involving regression require REG
mode. Press key to select REG mode.
@ In SD mode and REG mode, the [M+] key acts as the [DT] key.
@ When you select REG mode, the following screen appears.
Lin Log Exp >
] 2 3
e¥ti
+ Pwr Inv Quad
] 2 3
@ Press the number key ( (1) , [2] or[3]}) corresponding
to the regression type you want fo use.
[1] (Lin) : Linear regression
[2] (log) : Logarithmic regression
[3] (Exp) : Exponential regression
(>](1] (Pwr) : Mathematical power regression
(m)(2} (Inv) : Inverse regression
(~](3] (Quad) : Quadratic regression
@ Before entering data, press the [sm] 11) (Scl)
keys to clear the statistics memory.
@ Press the following key to input data.
<xdata > [2] <ydata >
@ The regression calculation result is determined by
the data input. The result can be displayed using
the following syntax and keys.
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