Fourier TriLink User Manual page 119

=
Power
y At
Draws a line of the time raised to the power of a number from –5 to 5.
Note: If you want the curve fit equation to start at
tool before any type of curve fitting (see page 139).
To apply manual curve fit:
1. Click on the Analysis menu, then click Manual curve fit to display
the Manual curve fit dialog box
2. To select a data set for display on the X-axis, click on the data set's
name in the X-axis list
3. To select a data set to display on the Y-axis, click on the data set's
name in the Y-axis list
4. Click OK. MultiLab will display the Manual curve fit toolbox at the
bottom of the graph window:
5. Choose one of the four curves by clicking the icon in the toolbox
6. Use the sliders to change the A, B and C parameters until the new
curve fits the sampled curve
7. The lower and upper limits of each sliding bar are located on the
sliding bar's left and right ends, respectively. You can change the
limit values by clicking a limit box, and typing in your new value
MultiLab will display the resulting equation on the information bar at the bottom of the
toolbox.
8. Click Add to project
project
9. To close the manual curve fit toolbox click Exit
118 Chapter 4 Working with a desktop computer
B +
C
Figure 22: Manual curve fit toolbox
in the toolbox to add the curve to the
=
t 0
, apply the crop
in the toolbox