Enter your functions - one per line - in this area. FX Graph's function entry utilizes our equation technology which is discussed in more detail later in this manual.
Function Display
Displays the currently selected function using our equation technology. Notice how the x2+y2=4 that we typed has been converted to a formatted equation.
Axis Control
Provides basic, extremely fast, control over the axis settings for FX Graph. Setting the axes using this system is a two stage process.
| 1. | Set the SHAPE you require using the two sliders.
|
| 2. | Set the MAXIMUM x and y values.
|
FX Graph does everything else automatically.
Angle Type
Degrees, Radians and Grads can be set here.
Greater Control
The Functions, Axes and Grid buttons give you much greater control over the output of FX Graph.
More Options
The More >> button expands the screen and provides access to more options - in this case Feasible Region settings. Many of FX Graph's screens contain a More >> button.
This diagram shows the Quick Entry screen with the More >> button depressed. Notice that we have set the axes to a different shape and set the x Max to 2pi. This forces FX Graph to mark the x scale in fractional parts of pi.
Axis Annotations
By default, FX Graph marks the axes as x and y. You can change these annotations here.
Show Grid
Turns the grid on and off.
Auto Scale
Autoscaling makes the setting of the axes even easier. If this box is checked, FX Graph will automatically detect any points of interest (local maxima and minima, x intercepts and intersections) from -500 to 500 and adjust the axes so that all of the points of interest are visible. Once you have selected Autoscaling, FX Graph takes full responsibility for the axes. Please note that the autoscaling feature slows down the response time of FX Graph.
Feasible Region Options
These settings are discussed in the Inequations & Feasible Regions section of the manual.