## This tutorial introduces the Wizard of Approximation. |

- Select data series on left panel [Points].
- Select menu item
**<Fit><Fit Function>.** - The 'Approximation line' Wizard appears.
- On step 3 select Family 'Exponential' and Function 'ExpGrowth3'.
- The form of equation is 't = a + b*exp(x/c)'.
- On step 4 click
**Recalc**. - New graph appears. See how curve fit conforms your data.
- On step 5 select line color and click
**Add Line**. - Close the dialog and select menu item
**<View><Fitting log>.**