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matplotlib does not show my drawings although I call pyplot.show()
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This answer is old, config should now be in ~/.config/matplotlib/matplotlibrc (for python 3, at least). I just had a related problem, and I think it was caused by using matplotlib in python 2.7, which created a ~/.matplotlib/ directory, and stopped python 3 f...
Using @property versus getters and setters
...icit" rule, but no one wants to admit it. It made it into the language, so now it is declared "Pythonic" via a tautological argument.
– Stuart Berg
Dec 10 '15 at 19:37
3
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string.charAt(x) or string[x]?
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Bracket notation now works on all major browsers, except for IE7 and below.
// Bracket Notation
"Test String1"[6]
// charAt Implementation
"Test String1".charAt(6)
It used to be a bad idea to use brackets, for these reasons (Source):
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Minimizing NExpectation for a custom distribution in Mathematica
...anResidualLife takes a long time to compute, even for a single evaluation. Now, the FindMinimum or similar functions try to find a minimum to the function. Finding a minimum requires either to set the first derivative of the function zero and solve for a solution. Since your function is quite compli...
Is cout synchronized/thread-safe?
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Technically true for C++98/C++03, but I think everybody knows that. But this does not answer the two interesting questions: What about C++0x? What do typical implementations actually do?
– Nemo
Jun 16 '11 at 15:46
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Double vs single quotes
...the user
Interpolating with single quotes does not work at all:
'#{Time.now}'
=> "\#{Time.now}" # which is not what you want..
Best practice
As most of the Ruby Linters suggest use single quote literals for your strings and go for the double ones in the case of interpolation/escaping sequen...
How to tell whether a point is to the right or left side of a line
...I choose two points ( a and b ) and draw an imaginary line between them. Now I want to have all points that are left from this line in one set and those that are right from this line in the other set.
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What is the difference between Bower and npm?
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npm 3 supports a flat dependency tree now.
– vasa
Nov 21 '15 at 6:55
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How to prevent page scrolling when scrolling a DIV element?
...;& e.preventDefault();
});
Inside the event handler, you'll need to know:
scrolling direction
d = e.originalEvent.deltaY, dir = d < 0 ? 'up' : 'down'
because a positive number means scrolling down
scroll position
scrollTop for top, scrollHeight - scrollTop - offsetHeight for bottom
If y...
Enum String Name from Value
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@AZChad it is a great thing to know, sure; but it doesn't really apply in the OP's scenario, since the values are coming from a database (so: runtime, not compile-time, values)
– Marc Gravell♦
Nov 29 '18 at 12:52
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