Do you find some mathematical activities useless?

[Csaba Tizedes]

Yes, pier4r, as I get older, I think these stuffs are totally useless and boring things. I can remember to my studies and I think if I can learn mathematics again I want to learn more useful algorithms, like swarm behaviour or how the predators are hunting or how to cover up a robbery, etc... This is full of math and more interesting to make an argumentation like "If 1/(aa) = 0.0(bb)(bb)(... and 1/(bb) = 0.0(aa)(aa)(..., then show that (aa) and (bb) is divisor of 990."

Csaba