Tag: They Said There Would Be No Math

Contributor Post Created with Sketch. Recommended by Ricochet Members Created with Sketch. Boots, Hammers, and Classic Math

 
From the invaluable comic Flintlocke’s Guide to Azeroth

Being a man subject to his vices, I’ve started up again on World of Warcraft. Not the new stuff, the “Classic” servers. “Is that what’s taking up your time?” I hear you all saying, “I had wondered why it was slightly less nerdy and pedantic around here.” Well, worry no more! For the joy and edification of the Ricochet audience, here I reproduce the work I did with the damage formulas. Because a simple post about Warcraft wouldn’t be nearly nerdy enough.

It all stemmed from a simple question; which is better, strength or agility? Strength adds damage, but agility adds some damage as well, and some critical hit chance too. So how do you compare them? You can’t categorically say that one is always better than the other. Well, you can, and people often do. But you can’t and still be right. In a broader sense, how do you decide between two items? Here, let’s go shoe shopping. Which pair of boots do you think goes better with my yellow damage?

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Contributor Post Created with Sketch. Recommended by Ricochet Members Created with Sketch. Fun with Vectors and the Zombie Apocalypse

 

No, not vector in the epidemiological sense. The other, mathy kind of vector. Which, trust me, are fun. At least stick around for the zombies.

This dates back to my college days, when I took Differential Equations. Twice. I’ve always been good with math. Sure, I struggled with plenty of things along the way (percentages, trig identities, multivariable integration. Oooh, and concentrations in chemistry), but DiffEq is where I hit the wall like a coyote hits his own painted-on tunnel. Vector spaces were part of that; an abtruse concept used to justify an abstract concept used to solve some difficult equations that might, in turn, have something to do with the real world. But once I got my head wrapped around them, vector spaces turned out to be a fun and useful bit of math. Hey, it could happen.

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Contributor Post Created with Sketch. Member Post

 

Listen, I’m going to be straight with you. This one is mostly for my fun. I mean, they’re all up largely because I like to hear the sound of my own voice. But this one, this one is a bit superfluous. This is the quantum mechanical explanation for how semiconductors work. I’ve already described the […]

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Contributor Post Created with Sketch. Recommended by Ricochet Members Created with Sketch. How to Build a Computer 14: Alignment

 

Last time we saw how you physically expose a panel. That is, how you shoot it with ultraviolet light to get a pattern into the stuff so that you can do things to that pattern later on. Today the plan is to talk about all the ways this can go wrong. We’ll start with the big one: alignment. If you’ll recall the profile of the jumping trace we looked at a couple weeks ago:

Hooray for a well-stocked media library!

See that trace on the top? Suppose you were to shift it over to the right. Eventually, you’d lose contact with your left via and you’ve got a hole in your wire. Busted circuit, sorry, can’t sell that one. Now imagine you’re shifting it forwards or backward; sooner or later you lose contact with your via and again you start making scrap. Or twist it side to side. Or shift it and twist it. Suddenly you’re wondering how they get these things on there at all. Don’t worry, it gets worse. Suppose both the vias and the top trace are aligning to the bottom traces. The vias get printed in an okay spot, but a little south of where they ought to be. Still in tolerance. The trace gets placed in its own okay spot, but a little north of where it ought to be. See where I’m going with this? The compounding of the two errors is enough to, again, cost you money. The problems compound when you have a second phototool on the bottom to align as well.

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