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Kak no-pyccku...

Recent Poo

February 1st, 2009

if your textbook is by Paul Garrett, don't stress too much about how your answers are different from the ones in the back of the book.

'cause more often than not, the book is fucking wrong.

i like the topics that he writes textbooks about, but as far as quality defined by no mistakes goes, his textbooks suck.

December 16th, 2008

update, kenken nerd-ry

classes are over now (i have no idea how well or poorly I did in PDE). i'm pretty relieved, although I'm sort of floating in this sur-reality where I only have to work. Last week I took off 4 days to study for my finals, I think that period of just waking up whenever and going to study got me into the habit of life without job-work. So I keep having to remind myself to go into work, it's such an afterthought.

My girlfriend is pretty great. We're making some progress at keeping our lives together despite the fearsome forces involved. I do need to do some laundry soon. I haven't quite finished introducing her to my friends, mostly due to their unavailability re: school or not. But this like many things will resolve as t goes to infinity.

I spent last night talking with my friend Justin. We talked a little about languages, as is our way, then I ran him a bit ragged with a computational math game (that my thoughtful girlfriend got me!), but the passion of our conversation was kenken. After solving a few together, he thought of making one. Turns out making kenken is challenging (reminding me of my similar experiences making kakuros / cross-sums). And once you overcome the challenge of being able to make a kenken, there is the added challenge of making one that can be solved (not to mention verifying (how?) that the solution is unique). I was able to make a 4x4, and two 6x6's. Justin tried and failed to make a 10x10, but was able to make a 6x6. Then we traded, tried to solve the 6x6's. We weren't able to solve them, and couldn't even make much headway. Herein was the discovery that making solvable kenken is difficult. You have to make specific design choices to make them possible to solve, and if you don't know what these design features are, then you probably won't accidentally include them. We'd just begun to discuss these features when the night was over and I had to head home (through the horrid black quiet coldness).

I'm inspired to think of kenken in general terms, an n by n grid, with digits 1 to n going in each block. how many possible arrangements? n^3 i think. now add in the sudoku aspect, only 1 to n in each column and row. how many possible arrangements?... i don't know. then add in the many subgroup arithmetic constraints, further reducing the number of arrangements. hopefully to 1, making the solution unique. how many single-block gimme's do you need in an n by n grid? how many double-block gimme's (where you know the two numbers but not the orientation)?... etc. It's fun to think about, and I'll have some time in the next few weeks to ponder it, and play and solve some kenken/kakuros.


November 16th, 2008

tiny update

studying for my only midterm (a benefit of dropping all the other actual classes except my independent study in elliptic curve cryptography) on Tuesday. going ok. study sheet created, now just doing as many problems (over again) as I can stand. actually this isn't really true. i start the problems, get to the tedious part (it would appear that Partial Differential Equations involves much tedium), and then skip to the end / don't finish it. i'm not really getting much actual practice in, but at least mentally i'm going over things.

life is superb. exercise/biking/diet regimen going steadily. I seem to be in better shape than ever, though I'd like to be a little bit stronger/thinner. But I feel great now so if nothing changes I'd be fine with this being permanent.

i have a girlfriend. she is basically awesome. she encourages me to eat more often, and healthier, makes me breakfast. like tasty breakfast, eggs, french toast, etc. this makes me want to do her dishes for the rest of her life, something I can do easily and that she abhors. we shall lend each other our strengths, creating a marvelous ly satisfied breakfast-making dishes-doing machine.

I have begun to detach from her just a bit, a restoration of balance and reclaiming the individual life, as is natural after the beginning period of frenetically getting to know each other and seeing each other daily. it is very difficult to say no to her, or to be the one who initiates our spending some time apart. I will try, practice. I realize I have let some friends slip a bit outward into non-seeing-ness, and am beginning to repair this. if this applies to you, now is the time to respond and make some plans to hang out.

tomorrow I can/must/should register for next semester's classes. the big gamble again, choosing which math classes I might not drop out of / might like the material. and do I do my final/third physics class now or the next/last semester? I choose any 4 math classes and the physics class (and should I throw in another independent study class because this semester's crypto one went so well?), and after two semesters I graduate. A very simple formula, but complicated by my tendency to drop things I'm not interested in.

ciao!, and good luck students doing their last midterms and pre-finals stuff.

November 3rd, 2008

my roommate felt it necessary to read this to me last night, and I'm glad he did.

from 1 Corinthians 13:

"If I speak in human or angelic tongues, but do not have love, I am only a resounding gong or a clanging cymbal. If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but do not have love, I am nothing. If I give all I possess to the poor and give over my body [to hardship] that I may boast, but do not have love, I gain nothing."

for all your flaws... this is not too shabby, Bible.

October 30th, 2008

I can play the guitar.


by play you mean throw.

I can play the guitar well.

Like 70 feet or so I'd say.

Really well.

October 26th, 2008

i don't even need chocolate. but i buy it sometimes, nice stuff too, just to have it on hand in case someone is over who really likes chocolate. in fact, i can almost never imagine this to be a guy, so it's a chocolate bar for a girl who i don't even know. or maybe it's not about being a good host to guests, maybe i'm just reveling in this power that i have, power over chocolate, something that usually makes people weak.

but i can tell you one thing. if it was salty and crunchy, I'd have eaten it and its brothers and their cousins like fifty times already. fifty times tonight.

it's snowing!!!


damn it. last night was so perfectly autumn. i was digging it.

not ready for a change of season yet, not not not ready.

October 23rd, 2008

spic n span

i hated it, but I cleaned up all the LaTeX in my crypto doc and now there's not hundreds of lines of warnings to sort through when something really goes wrong. Also in doing so, I understood what LaTeX even cares about enough to give a warning, an experience.

all this, just 'cause I couldn't find the bug preventing me from compiling my last modification, arg.

October 22nd, 2008

well, one thing I haven't yet tried is to pull an all nighter. like needlessly.

this might reset things. or it might cause a disaster. well, every day is almost a disaster already.

October 20th, 2008

i burn

Autumn spirit floating on the cold night air,

i need you.

i need you to enter my lungs, and fill my bloodstream,

with your soothing qualities.

for my blood burns, it boils, it churns, inside of me.

i need you now.
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