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13.13.7 The Cartesian equation of a geometric object in the plane: equation

See Section ‍14.12.5 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 ‍4.4.8.

Example

Input:

equation(line(-1,i))

Output:

y=x+1

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