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Is it possible to specify a different ssh port when using rsync?
... very good answer. It's worth using SSH config for any host you connect to more than once or twice as it'll save you a lot of thinking and typing.
– John Hunt
Apr 28 '14 at 8:59
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Difference between Big-O and Little-O Notation
...mptotic growth is strictly slower than g's". It's like <= versus <.
More specifically, if the value of g(x) is a constant multiple of the value of f(x), then f ∈ O(g) is true. This is why you can drop constants when working with big-O notation.
However, for f ∈ o(g) to be true, then g mu...
jQuery UI accordion that keeps multiple sections open?
...ons
open at once, don't use an accordion
An accordion doesn't allow more than
one content panel to be open at the
same time, and it takes a lot of
effort to do that. If you are looking
for a widget that allows more than one
content panel to be open, don't use
this. Usually it can ...
How to make good reproducible pandas examples
...olumns, this can be used to easily duplicate r's expand.grid() but is also more flexible in ability to provide a subset of all permutations. However, for 3 or more columns the syntax quickly becomes unwieldy.
For a more direct replacement for r's expand.grid() see the itertools solution in the pand...
Targeting only Firefox with CSS
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Are loops really faster in reverse?
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Why / when would it be appropriate to override ToString?
...n, ToString is a prime candidate (there are others, if you want to provide more elaborate formatting options).
Concretely,
Console.WriteLine(yourObject);
would invoke yourObject.ToString().
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What's the difference between utf8_general_ci and utf8_unicode_ci?
...icode or _general. Much of what's written below is not of much interest anymore if you can use one of the newer collations instead.
Key differences
utf8mb4_unicode_ci is based on the official Unicode rules for universal sorting and comparison, which sorts accurately in a wide range of languages.
u...
Insert multiple rows WITHOUT repeating the “INSERT INTO …” part of the statement?
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Is this any more efficient than using multiple INSERT statements?
– Code Commander
Oct 24 '11 at 21:42
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Best programming aids for a quadriplegic programmer
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I have sports injuries, and I cannot type more than few characters without serious pain.
Instead, I use emacs together with Dragon NaturallySpeaking.
I have written macros and scripts to help it get by. The system is not perfect, but it works.
I program mostly in C...