Table 2.

Coordinate systems used by research works.

Coordinates	[88]	[89]	[90]	[91]	[92]	[93]	[94]	[95]	[96]	[97]	[98]	[99]
Affine coordinates			√	√							√
Standard projective							√
Jacobian projective		√
Lopez and Dahab	√				√	√		√	√	√		√