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How to compare two colors for similarity/difference
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answered Jan 26 '12 at 14:20
Liudvikas BukysLiudvikas Bukys
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python pandas remove duplicate columns
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409
There's a one line solution to the problem. This applies if some column names are duplicated an...
How can I have two fixed width columns with one flexible column in the center?
...sing width (which is a suggestion when using flexbox), you could use flex: 0 0 230px; which means:
0 = don't grow (shorthand for flex-grow)
0 = don't shrink (shorthand for flex-shrink)
230px = start at 230px (shorthand for flex-basis)
which means: always be 230px.
See fiddle, thanks @TylerH
Oh...
How do I represent a hextile/hex grid in memory?
...ex grids also)
– amitp
Jun 7 '13 at 0:58
I find the blog super confusing, using x,y,z and q,r,s then the implementatio...
What does `someObject.new` do in Java?
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120
It's the way to instantiate a non-static inner class from outside the containing class body, as ...
How to clear the canvas for redrawing
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const context = canvas.getContext('2d');
context.clearRect(0, 0, canvas.width, canvas.height);
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How to calculate a logistic sigmoid function in Python?
... math.exp(-x))
And now you can test it by calling:
>>> sigmoid(0.458)
0.61253961344091512
Update: Note that the above was mainly intended as a straight one-to-one translation of the given expression into Python code. It is not tested or known to be a numerically sound implementation. I...
Android OpenGL ES and 2D
...ave your canvas set up, you start by calling something like:
gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
After that you're ready to render a sprite.
First, you'll need to load the sprite into a texture: http://qdevarena.blogspot.com/2009/02/how-to-load-texture-in-android-opengl.html
However, this is the...
How to access the local Django webserver from outside world
...o successfully run it using python manage.py runserver . If I access 127.0.0.1:port locally from the webserver, I get the Django page indicating it worked.
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Maximum single-sell profit
...ry!), but it's helpful to see the algorithm evolve:
5 10 4 6 7
min 5 5 4 4 4
best (5,5) (5,10) (5,10) (5,10) (5,10)
Answer: (5, 10)
5 10 4 6 12
min ...