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How To Create Special Graphs
Following these steps to create color map, contour map and vector plot of following function:
z=sin(x)sin(y)
-6<=x<=6 -6<=y<=6
Step 1: Create A New Special Graph Document
If graphs created before are 2D, 2.5D or 3D, click  button first to create a new special graph document.
Step 2: Create Color Map
Click  button to open Function Color Map dialog box. In default, Function Grapher discribes functions in the form of
parametric, so, z=sin(x)sin(y) should be modified into the form of x=u, y=v,z=sin(u)sin(v).
In Function Color Map dialog box, input u in X(u,v) field, input v in Y(u,v) field, input sin(u)sin(v) in Z(u,v) field, input -6
in Min u field, input 6 in Max u field, input 40 in Steps u field, input -6 in Min v field, input 6 in Max v field, input 40 in
Steps v field.
  
Click OK button to create the first graph.
Step 3: Add Contour Map
Click  button to open Function Contour dialog box. In default, Function Grapher discribes functions in the form of
parametric, so, z=sin(x)sin(y) should be modified into the form of x=u, y=v,z=sin(u)sin(v).
In Function Color Map dialog box, input u in X(u,v) field, input v in Y(u,v) field, input sin(u)sin(v) in Z(u,v) field, input -6
in Min u field, input 6 in Max u field, input 40 in Steps u field, input -6 in Min v field, input 6 in Max v field, input 40 in
Steps v field.
  
Use Contour tab to set the color of current curve into black, click OK button to add the second graph.
Step 4: Add Vector Plot
Click  button to open Function Vector Plot dialog box. In Function Color Map dialog box, input u in X(u,v)
field, input v in Y(u,v) field, input sin(u)sin(v) in Z(u,v) field, input -6 in Min u field, input 6 in Max u field,
input 30 in Steps u field, input -6 in Min v field, input 6 in Max v field, input 30 in Steps v field.
  
Click OK button to add vector plot.
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