2 ms·
One person in the 4chan discussion suggested writing an answer at https://math.stackexchange.com/questions/15510/ https://math.stackexchange.com/questions/15510
by JdeBP 8y ago
One person in the 4chan discussion suggested writing an answer at https://math.stackexchange.com/questions/15510/ https://math.stackexchange.com/questions/15510/ .