The use-package macro allows you to isolate package configuration in your .emacs file in a way that is both performance-oriented and, well, tidy. I created it because I have over 80 packages that I use in Emacs, and things were getting difficult to manage. Yet with this utility my total load time is around 2 seconds, with no loss of functionality!
init.elを読みやすくするマクロ集合体だけど、あとでつかう
設定がなんのことか分からず困惑した
Release 1.15.70 · aws/aws-cli · GitHub
google spreadsheet api
なのだけど、updateは既にセルにデータが入っていたら何もしない挙動になっている
https://developers.google.com/sheets/api/reference/rest/v4/spreadsheets.values/append
https://developers.google.com/sheets/api/reference/rest/v4/spreadsheets.values/clear
>>> import operator >>> l = [[1,2,3],[4,5,6], [7], [8,9]] >>> reduce(operator.concat, l) [1, 2, 3, 4, 5, 6, 7, 8, 9] >>> l [[1, 2, 3], [4, 5, 6], [7], [8, 9]] >>> reduce(operator.add, l) [1, 2, 3, 4, 5, 6, 7, 8, 9] >>> reduce(lambda x, y: x+y, l) [1, 2, 3, 4, 5, 6, 7, 8, 9]
解法としてはこうなるんだろうけど、なんでflattenされるのか謎
http://goessner.net/articles/JsonPath/
対策 ブラケットをつかう
対策 ブラケットをつかう
生きていきましょう
<div style="padding-left: 2em">
[tex:
A = \left(
\begin{array}{ccc}
a & b \\
c & d
\end{array}
\right)
A^-1 = \frac{1}{ad - bc}\left(
\begin{array}{ccc}
d & -b \\
-c & a
\end{array}
\right)
]
</div>
正則行列と逆行列
<div style="padding-left: 2em">
[tex:
A = \left(
\begin{array}{ccc}
1 & 1 \\
0 & 2
\end{array}
\right)
B = \left(
\begin{array}{ccc}
1 & 0 \\
0 & 1/2
\end{array}
\right)
]
</div>
特に意味のないelisp
(defun insert-hatena-latex-markdown () (interactive) (insert "<div style=\"padding-left: 2em\">") (newline) (insert "[tex:") (newline) (insert "]") (newline) (insert "</div>") (newline) )
https://ja.wikipedia.org/wiki/%E6%AD%A3%E5%89%87%E8%A1%8C%E5%88%97
生きてきましょう
[tex: \displaystyle
A = \left(
\begin{array}{ccc}
a & b & c \\
d & e & f \\
g & h & i
\end{array}
\right)
]
<div style="padding-left: 2em">
[tex: \displaystyle
A = \left(
\begin{array}{ccc}
a & b & c \\
d & e & f \\
g & h & i
\end{array}
\right)
]
</div>
/home/.pyenv/shimsにcpこのあたりを参考にしながら。
date_format的なアレはPostgreにはない
SELECT to_char(CURRENT_TIMESTAMP, 'YYYY-MM-DD HH12:MI:SS'), to_char(CURRENT_TIMESTAMP, 'YYYY-MM-DD HH24:MI:SS')
https://www.postgresql.jp/document/9.4/html/functions-formatting.html
