John Robertson

North Salt Lake, UT

john.jersdesk.com

Age: 43

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.

7h
comment pdflatex.exe: Invalid argument
It can become "online" if you are keeping it in OneDrive so it will be synced across multiple machines.
9h
comment pdflatex.exe: Invalid argument
Be wary of any windows notion that begins with the word "smart".
10h
comment A player constantly uses his mobile phone during our game session
+1 For the core issue: "this game does not deserve my full attention". Would be the same if they were looking through a magazine or reading a book at glances or flipping through an advertisement or watching soccer in the background or whatever.
10h
answered Is there a free-to-use alternative to photoshop for windows?
Aug
27
awarded Yearling
Aug
27
awarded Autobiographer
Aug
24
awarded Notable Question
Aug
19
awarded Yearling
Aug
19
awarded Critic
Aug
19
awarded Autobiographer
Aug
19
comment Why milky way galaxy cannot be seen by human eye while by camera?
Except cameras have a much poorer dynamic range than the human eye. A human eye can make out something light and dark in the same scene, but cameras will either wash out the light area or leave the dark area a charcoal grey mess, depending on your exposure setting.
Aug
9
comment How can I beat "Big Money" in Dominion?
I think there are setups where it is, or at least where it is with only a little modification, but they are rare. Playing androminion random setups each repeatedly until I find a strategy that beats the computer players there have been a couple of setups where big money with maybe a very small amount of modification seemed to be about as well as you could do. Obviously I can't prove that. And its been a while so I don't remember the specifics of any of them. I think(??) they involved mostly cheap cards and oddities like no drawing cards, or no multiple action cards, or no multiple buy cards.
Aug
9
comment How can I beat "Big Money" in Dominion?
The bigger question is how you beat Feast + a Draw Card (e.g. Feast + Smithy, Feast + Journeyman, ....).
Aug
4
comment In what order should the Star Wars movies be watched?
I find my life better if I think of I,II,III as being fan fiction. If you really want to bring anything from I,II,III into your IV,V,VI experience, pretend that Alderan is a world of Jar-Jar's in IV.
Aug
3
comment Ribs in Slow Cooker, then finished on BBQ?
This is probably grilling blasphemy, but I don't own a grill and I am curious what will be lost if I simply cook them in my oven at 225-275 degrees?
Aug
2
comment Is Mana Weaving ok if it's followed by a thorough shuffle?
Having had a bit more to think about it, if anything, an undershuffled deck that had its mana all in a clump is more likely to have evenly distributed mana than one that had mana spread throughout. That is because randomness is NOT evenly distributed. So much so that facing real randomness, people often attribute the extremely uneven results to "good luck" or "bad luck". Shuffling works by doubling gaps between cards. Until the gaps between mana cards are doubled to the point that they are "lapping" the thickness of the deck the distribution of mana will be more uniform than true randomness.
Aug
2
comment Is Mana Weaving ok if it's followed by a thorough shuffle?
I'm quite dubious that if the shuffle is a tiny bit short of perfect than starting with a mana woven deck offers any meaningful advantage. Shuffling works by roughly doubling the space between cards. Where that gets interesting is as the gaps exceed the thickness of the deck and small differences in initial card position are all over the place. (Shuffling, effectively, uses a form of the butterfly effect to achieve its randomization - with the caveat that new perturbations are added with each shuffle)
Jul
17
comment Javascript mousemove event queue
The 1/10 of a second estimate depends on what you are doing. Human motions that take 1/10 of a second, say in athletics, are visible to a person and are noticeable when missing. A 1/10 second drag behind a moving mouse will be quite noticeable I think. Human speech involves all sorts of bits that are less than 1/10 of a second and that stand out when omitted.
Jul
17
comment How to do time-lapse photography without intervalometer using Nikon D3300?
@martinerk0 Would it be easy to do this from an android phone? That seems far more portable. Taking a quick look at google play I see some wireless intervalometers for android. I don't know if there is a cabled one in there as well (as d3300 doesn't have wireless by default)
Jul
8
comment Is $\frac{\textrm{d}y}{\textrm{d}x}$ not a ratio?
dy/dx is a ratio. It is a ratio of differentials. A differential is a function on vectors, not a function on points.
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