Regression Calculations

Press to enter REG mode:

Press , or for [Lin] = Linear regression, [Log] = Logarithmic regression, [Exp] = Exponential regression.

press or to enter another regression options:

You can press , or for [Pwr] = Power regression,

[Inv] = Inverse regression, [Quad] = Quadratic regression.

(Example #19)

Logarithmic, Exponential, Power, and Inverse Regression Formulas

•Logarithmic Regression : y = A + Blnx

•Exponential Regression : y = AeBx (lny = lnA + Bx)

• Power Regression

: y = AxB (lny = lnA + Blnx)

• Inverse Regression

: y = A+Bx -1

(Example #20)

 

BATTERY REPLACEMENT

When the display characters are dim even a darker LCD contrast had been adjusted OR the following Low battery message appears on the display, replace the battery immediately.

Please replace the lithium battery by the following procedures:

1.Press to power off the calculator.

2.Remove the screw which securely fix the battery cover in place.

3.Slide the battery cover slightly and lift it.

4.Remove the old battery with a ball pen or similar sharp

object .

5.Load the new battery with the positive "+" side facing up.

6.Replace the battery cover, screw, and press the,

to initialize the calculator.

Caution: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instruction.

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