You can discard the b and c parameters as they only have something to do with the placement of the parabola.
t and u is the "velocity" of the point of the ray. You can indeed just set t=1 and u=s
You can discard the b and c parameters as they only have something to do with the placement of the parabola.
t and u is the "velocity" of the point of the ray. You can indeed just set t=1 and u=s
Peregrinus, expectavi pedes meos in cymbalis
Nullus norvegicorum sole urinat
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