Recent content by mpekatsoula

  1. M

    Undergrad Is binary divisibility by 3 determined by even and odd bit count?

    Well thanks for the help! First time in my life i hear about modular arithmetic! It took me some time to understand but thanks to your answer i think i got it!
  2. M

    Undergrad Is binary divisibility by 3 determined by even and odd bit count?

    Well i found this sentence: "If the number of even bits minus the number of odd bits is a multiple of 3 (e.g. -3,0,3,6, etc) then the number is divisible by three." Can anyone tell me the proof of this? Thanks
  3. M

    Undergrad Max Space Velocity: Reach Limit?

    Thanks AGADOTTI! obvious i can tell but i couldn't think that this was the reason! thanks for the link also
  4. M

    Undergrad Max Space Velocity: Reach Limit?

    Ok.. first of all excuse my English (not my native). I had a conversation with a friend and we were thinking.. We have a spacecraft or something like that. Let's tell that it has a lot of fuel and we are moving with a = x m/s^2, where a is acceleration and x a value (we don't care how big or...