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24.12.7  Cartesian equation of a geometric object in the plane

See Section 25.10.5 for Cartesian equations of three-dimensional objects.

The equation command finds the Cartesian equation for a geometric object.

Note that x and y must be formal variables, you might need to purge them with with purge(x) and purge(y), see Section 3.3.8.

Example

equation(line(-1,i))
     
y=x+1           

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