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Changes between Initial Version and Version 1 of Ticket #6201, comment 13

initial	v1
11	11	There are two exact solutions of this problem, {{{x = +/-sqrt(time)}}}. But, again, if you subtract {{{eps}}} from time in the first equation, or if you subtract {{{eps}}} from {{{y}}} in the second equation, '''boom'''!
12	12
13		Also in this case, you can see there is something fishy here because the Jacobian of the implicit equation {{{y = x^2}}} is zero when {{{time = 0}}}. Even if you don't solve it numerically, this singularity is a revealing sign of ill-posedness.
	13	Also in this case, you can see there is something fishy here because the Jacobian of the implicit equation {{{y = x^2}}} is zero when {{{time = 0}}}. Even if you don't solve it numerically, this singularity is a revealing sign of ill-posedness, because it tells you that the function is not locally invertible when {{{time = 0}}}.