John Robertson

North Salt Lake, UT

john.jersdesk.com

Age: 44

I am a software developer. I am particularly fond of the areas:

  • artificial intelligence, computer vision & machine learning
  • high end graphics & image processing
  • games

As stackoverflow changed their icon in celebration for several days when the US Supreme court unlawfully legislated to make gay marriage legal, I will in turn address the matter in my stackoverflow profile. That is the only way I can, in good conscience, continue to participate in stackoverflow.

I stand by the bible's teachings on the matter of homosexuality. I am a member of the Church of Jesus Christ of Latter-Day Saints, also known as a Mormon. That means I consider homosexuality and related immorality to be a perversion. By contrast I consider marriage to be sacred. The court has no more right to redefine the family than government can change the fact that men are born with God given inalienable rights.

I am also a mathematician.
I quite like interesting games and enjoy playing them with those of my many wonderful children who are old enough. We will often edit what we might find to be sleazy in a game without altering the game play, which quite widens the range of games we can play while staying within what we consider to be gospel standards.

Feb
5
awarded Necromancer
Jan
28
awarded Notable Question
Jan
15
awarded Notable Question
Jan
11
awarded Popular Question
Dec
25
awarded Nice Question
Dec
20
awarded Notable Question
Dec
4
awarded Good Question
Nov
20
awarded Famous Question
Nov
17
awarded Popular Question
Nov
4
awarded Yearling
Oct
28
awarded Notable Question
Oct
28
awarded Popular Question
Oct
27
awarded Notable Question
Oct
20
awarded Student
Oct
16
awarded Scholar
Oct
16
accepted A simple grid puzzle
Oct
16
comment A simple grid puzzle
Not quite. It isn't hard to prove per se, but it isn't as easy as what you are saying because not every permutation of a 4x4 block can be obtained by permuting rows and columns and just because you get two in the right place in one row using permutations doesn't a priori mean you can get all the others in the right place with permutations without messing up the ones you already got right. I think it is kind of funny that you have made two objections - the first being that I was saying something false, the second being that I was saying something completely self evident.
Oct
16
comment A simple grid puzzle
@GentlePurpleRain Yes, every solution can be obtained from one solution by permuting rows and columns. Your example is obtained from the displayed one by switching the 3rd row with the 4th row and the 3rd column with the 4th column. That changes all your 4s into 3s which becomes exactly the solution shown in the answer.
Oct
16
asked A simple grid puzzle
Sep
28
awarded Nice Answer
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