HP 35s HP 35s scientific calculator - User Guide - Page 248
Data values of large magnitude but relatively small differences can incur problems, of precision
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Straight Line Fit y S y = B + Mx Exponential Curve Fit y E y = BeMx x Logarithmic Curve Fit y L y = B + MIn x x Power Curve Fit yP y = BxM x x To fit logarithmic curves, values of x must be positive. To fit exponential curves, values of y must be positive. To fit power curves, both x and y must be positive. A 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 12. 16-2 Statistics Programs
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16-2
Statistics Programs
To fit logarithmic curves, values of
x
must be positive. To fit exponential curves,
values of
y
must be positive. To fit power curves, both
x
and
y
must be positive. A
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 12.
y
x
y
B
Mx
=
+
Straight Line Fit
S
y
x
y
Be
Mx
=
Exponential Curve Fit
E
y
x
y
B
MIn x
=
+
Logarithmic Curve Fit
L
y
x
y
Bx
M
=
Power Curve Fit
P