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Converting RGB to grayscale/intensity
...gt; L*
In color science, the common RGB values, as in html rgb( 10%, 20%, 30% ),
are called "nonlinear" or
Gamma corrected.
"Linear" values are defined as
Rlin = R^gamma, Glin = G^gamma, Blin = B^gamma
where gamma is 2.2 for many PCs.
The usual R G B are sometimes written as R' G' B' (R' = Rli...
How can I set the aspect ratio in matplotlib?
... = im[0].get_extent()
ax.set_aspect(abs((extent[1]-extent[0])/(extent[3]-extent[2]))/aspect)
data = np.random.rand(10,20)
fig = plt.figure()
ax = fig.add_subplot(111)
ax.imshow(data)
ax.set_xlabel('xlabel')
ax.set_aspect(2)
fig.savefig('equal.png')
ax.set_aspect('auto')
fig.savefig('auto.png'...
Convert Elixir string to integer or float
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edited Jul 10 '18 at 13:06
Ronan Boiteau
7,52566 gold badges2828 silver badges4343 bronze badges
ans...
Stack vs heap allocation of structs in Go, and how they relate to garbage collection
... taken of any part of a struct, the struct goes on the heap.
For question 3, we risk getting confused about terminology. Everything in Go is passed by value, there is no pass by reference. Here you are returning a pointer value. What's the point of pointers? Consider the following modification ...
Global access to Rake DSL methods is deprecated
I am working through the Ruby on Rails 3 tutorial book and typed the following on the command line:
5 Answers
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Why does substring slicing with index out of range work?
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3 Answers
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In HTML I can make a checkmark with ✓ . Is there a corresponding X-mark?
Is there a corresponding X mark to ✓ ( ✓ )? What is it?
4 Answers
4
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What are Vertex Array Objects?
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Daniel Que
1,63433 gold badges1414 silver badges2929 bronze badges
answered Aug 6 '12 at 1:24
HughHugh
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Determining complexity for recursive functions (Big O notation)
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362
The time complexity, in Big O notation, for each function:
int recursiveFun1(int n)
{
if ...
MySQL IF NOT NULL, then display 1, else display 0
...
LEFT JOIN addresses a ON c.customerid = a.customerid
WHERE customerid = 123
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