https://bugs.kde.org/show_bug.cgi?id=505842
--- Comment #1 from Maurizio Paolini <[email protected]> --- Created attachment 182420 --> https://bugs.kde.org/attachment.cgi?id=182420&action=edit possible patch to alleviate the problem for the specific situation described In the case where the vertical line is constrained through a point on the cubic the software arrives to a quadratic equation to solve that happens to have zero or almost-zero second-degree coefficient. This situation is catched and dealt with appropriately. -- You are receiving this mail because: You are watching all bug changes.
