I offer to replace it by “17”.

2). Tao, if you can’t find the solution of this problem, don’t ask other people to find it, because nobody is smarter (nowadays) than you. This task may led some mathematician to the mental hospital.

3). For shure, if I ask about those matrix my former college math teacher, I will take a revenge for sheering me in front of a class.

]]>*[Corrected, thanks – T.]*

Yes, it is something like or so if one works through all the computations, though I did not attempt to optimise it.

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