HP -225 Owner's Manual page 130

Scientific calculator
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Non-Linear Curve-Fitting
The linear regression (L.R.) menu can be used to do curve fitting for
the logarithmic, exponential, and power models.
Linear Curve Fit
Exponential Curve Fit
y
y
y=b+mx
y =be™
-~
X
X
Logarithmic Curve Fit
Power Curve Fit
y
y
y=b+m Inx
y =bx™
In order to use linear regression for those models, the data must
undergo the appropriate transformations.
122
8: Additional Examples

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