Science
Related: About this forumCalculate cube roots instantly in your head
Oh, this is brilliant! Amaze your friends. You don't even have to be that smart.
sinkingfeeling
(51,484 posts)pokerfan
(27,677 posts)bvar22
(39,909 posts)!
SwissTony
(2,560 posts)BadgerKid
(4,559 posts)-- not at all to go ballistic towards you -- this is exactly the type of thing that educators, scientists, and employers loathe since in and of itself, it conveys a false sense of understanding. It does help train your brain for pattern recognition, which is a nice scientific skill to have. It's good in math and computer programming because if your problem can be reduced to a solved problem, you're golden. Otherwise, you're hosed and then you need to understand how to do things the long, drawn-out way or to come up with something yourself.
My nephew likes these things; it's one of the few things that keeps his mind active and generally motivated about math.
Fantastic Anarchist
(7,309 posts)Now if I could just remember the cubes of anything past 6.
Response to pokerfan (Original post)
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dipsydoodle
(42,239 posts)He'd memorised the log and anti-log tables
I only said to 16th because after that he'd need to think about it. There was apparently some importance to 16 times tables from the past which I still don't understand. He'd got he me to learn 16 x to 12 when I was 6 six years old.
Its easy to calculate square roots longhand and presumably there's a way to do that with other powers too.