IWABUCHI Yu(u)ki (butchi) butchi

ART, Research, Technology.

butchi / abstract-lyric.js

Last active January 23, 2020 16:57

#抽象歌詞 https://twitter.com/hashtag/%E6%8A%BD%E8%B1%A1%E6%AD%8C%E8%A9%9E

	const MeCab = new require('mecab-async')
	const mecab = new MeCab();

	mecab.parse(process.argv[2], (err, result) => {
	if (err) throw err;
	const txt = result.map(item => {
	if (false) {
	} else if (['接尾'].includes(item[2])) {
	return item[0];
	} else if (['人名', '組織', '地域'].includes(item[3])) {

butchi / prime-daifugo-utility.nb

Created December 5, 2018 08:45

素数大富豪研究のためのMathematicaユーティリティー関数 https://qiita.com/butchi_y/items/ce0fde84495c76197a49

	superscript[a_, b_] := If[b == 1, a, Superscript[a, b]]
	centerDot[li_] := If[Length[li] == 1, First[li], CenterDot @@ li]
	j[n_] := If[PrimeQ[n], ToString[PrimePi[n]] <> "番目の素数",
	centerDot[superscript @@@ FactorInteger[n]]]

	divisible[check_Integer, OptionsPattern[origin -> True]] :=
	Divisible[#, check] && If[OptionValue[origin], True, # != check] &
	divisible[checkLi_List, OptionsPattern[origin -> True]] :=
	AnyTrue[Table[divisible[check, origin -> OptionValue[origin]][#], {check, checkLi}], TrueQ] &

butchi / dot.js

Created September 4, 2017 19:41

Inner product by JavaScript (ES2015)

	function dot(a, b) {
	const len = Math.max(a.length, a.length);

	let zeros = new Array(len).fill(0);

	let ret;

	ret = zeros.reduce((p, c, i) => {
	const itemA = a[i] \|\| 0;
	const itemB = b[i] \|\| 0;

butchi / fibonacci_word_sequence_definition.js

Created August 24, 2017 22:51

フィボナッチ列の計算

butchi / file0.txt

Created July 20, 2017 21:40

MarkdownでURLを自動リンクしない（＋ RFC 7763を詳しく調べてみた） ref: http://qiita.com/butchi_y/items/1edea5f14f23d5a22911

markdown http リンクにしない

butchi / bitrev.js

Created April 20, 2017 21:57

bit reversal refs https://twitter.com/butchi_y/status/117408580289822721

butchi / file0.js

Last active March 23, 2017 09:38

必ず元の場所に戻るランダムウォークのサンプル ref: http://qiita.com/butchi_y/items/b1b2a2cd5d9fc81a746e

	const LENGTH = 25; // 25×2の50回ランダムウォークする
	const MAGNITUDE = 10; // 振動ピクセル幅

	// 入力した正の数を正負両方含む配列（倍のサイズ）として返す
	function double(arr) {
	let ret = [];

	arr.forEach((num) => {
	ret.push(num);
	ret.push(-num);

butchi / common.css

Last active February 21, 2017 01:54

はてブボタンが黒背景でダサい問題を解決する ref: http://qiita.com/butchi_y/items/ee39b4e12f16a8d4f834

	.hatena-bookmark-button-frame {
	border-radius: 4px;
	}

butchi / quadratic-formula

Last active February 3, 2017 12:33

MathML簡略化案

	# https://ja.wikipedia.org/wiki/Mathematical_Markup_Language

	```replace-list--math-ml
	replace mrow(/(.+)/) -> ($1)
	replace mfrac(/(.+) (.+)/) -> ($1 / $2)
	replace msup(/(.+) (.+)/) -> ($1 ^ $2)
	replace msqrt(/(.+)/) -> √($1)
	replace mi(/([a-z]+)/) -> $1
	replace mn(([1-9][0-9]*)) -> $1
	replace mo(=) -> =

butchi / AnimKanpai.js

Last active December 19, 2016 09:07

実践！Animate CCを使ったWebサイト演出 ref: http://qiita.com/butchi_y/items/fb62522e64812213c2a5