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D.5.1.11 testPointConic

Procedure from library paraplanecurves.lib (see paraplanecurves_lib).

Usage:
testPointConic(p, r); p poly, r ring

Assume:
assumes that p is a homogeneous quadratic polynomial in the first three ring variables of the current basering;
Assumes that there is a (1x3) matrix named 'point' in r with entries from the ground field of r.

Return:
returns 1 iff the point named 'point', residing in r, lies on the conic given by p; 0 otherwise

Note:
This method temporarily changes the basering to r. Afterwards, the basering will be the same as before.

Example:
 

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