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Complex numbers usage in python [closed]
...suffix comes from electrical engineering, where the variable ‘i’ is usually used for current. (Reasoning found here.)
The type of a complex number is complex, and you can use the type as a constructor if you prefer:
>>> complex(2,3)
(2+3j)
A complex number has some built-in accesso...
Get element type with jQuery
...ed by the prev(), which is specific for the example code in question. Basically, $(this).is("input");
– Fanky
Jan 9 '17 at 10:04
1
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How to convert integer to string in C? [duplicate]
...printf():
int someInt = 368;
char str[12];
sprintf(str, "%d", someInt);
All numbers that are representable by int will fit in a 12-char-array without overflow, unless your compiler is somehow using more than 32-bits for int. When using numbers with greater bitsize, e.g. long with most 64-bit comp...
Disable form auto submit on button click
... type to button.
But if you bind your event handler like below, you target all buttons and do not have to do it manually for each button!
$('form button').on("click",function(e){
e.preventDefault();
});
share
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“while :” vs. “while true” [duplicate]
...es nothing, but returns 0 (success). Thus, it's shorter (and faster) than calling an actual command to do the same thing.
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python .replace() regex [duplicate]
...waway script - both the regex approach and the string search approach have all sorts of inputs they'll fail on. For anything in production, I would want to be doing some sort of more sophisticated parsing than either regex or simple string search can accomplish.
– Julian
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Check cell for a specific letter or set of letters
...).
=SEARCH("bla",A1)
Case insensitive, so treats Black and black equally. Returns as above.
The former (for the latter equivalent) to indicate whether bla present after the first three characters in A1:
=FIND("bla",A1,4)
Returns a number for blazer, black but #VALUE! for blazer, blue....
Git - undoing git rm [duplicate]
...) and then I git added too many files, so I tried using git rm and accidentally deleted EVERYTHING. Is there hope for me? :(((
...
Is there a way to “limit” the result with ELOQUENT ORM of Laravel?
...
This is seriously amazing! Using bootstrap, literally all the code you need is $games = Game::paginate(30) in your controller and {{ $games->links() }} in your view... it takes care of everything. Loving Laravel!
– david_nash
Feb 8 ...
SQL: How to perform string does not equal
...
Your where clause will return all rows where tester does not match username AND where tester is not null.
If you want to include NULLs, try:
where tester <> 'username' or tester is null
If you are looking for strings that do not contain the word...