This calculator focuses on calculations for logarithmic curve fitting.

y = b + m * ln(x)

is used to append the x and y reg values to the x and y lists.

For y=54 and x=4:

54

4

Note that all values for x must be greater than 0.

See the Logarithmic Curve Fitting Examples for additional information on this calculator.

Using the "long press" gesture will display a hint about any key. (Video: Displaying a hint) You can inspect the Key Details to see the formulas and functions for any key.

The List Manager is used to inspect and edit the lists.