HP HP-32S - Page 207

Straight Line Fit
S
y=B * Mx
Logarithmic Curve Fit
Exponential Curve Fit
E
Power Curve Fit
P
y=BxN
To fit logarithmic curves, values of x must be positive. To fit exponen
tial curves, values of y must be positive. To fit power curves, both x
and y must be positive. A LOG<NEG) error will occur if a negative
number is entered for these cases.
Data values of large magnitude but relatively small differences can
incur problems of precision, as can data values of greatly different
magnitudes. Refer to 'Limitations in Precision of Data* in chapter 11.
13: Statistics Programs 205