sniffnoy: (Chu-Chu Zig)
[personal profile] sniffnoy
No, I have nothing for April Fools' day. Just couldn't think of anything.

Haha, I forgot Joe and Mike both also have double lunch on Thursdays. That was the weirdest Gnostica board I've ever seen. Would have been even weirder had we time to finish. Its shape was like this:
 X
XXX
X XXX
X

Gah. On the bus home, Choketsu brought up the question of whether or not Σsin(n)/n converges. Well, it does, it seems. Then Tom went and - and none of us noticed the mistake, I didn't till after I got home - misapplied Yakov's Favorite Test[0] to get that Σsin(2n) converges. :D Which would be really neat, and who knows, maybe it does, but, yeah, complete misapplication of Yakov's Favorite Test... I was so disappointed when I realized that.

(Yakov's Favorite Test states that if {an} is positive and nonincreasing, then Σan converges iff Σ2na2^n does.)

-Sniffnoy
...wtf? Why does the spellchecker accept "nondecreasing" but not "nonincreasing"?

[0]Aka "the Cauchy Condensation Test". But we all know its real name is "Yakov's Favorite Test" :D

--
"I give up," said Pierre de Fermat's friend. "How DO you keep a
mathematician busy for 350 years?"

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