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How to initialize a two-dimensional array in Python?
... \
for i in range (0, 10): \
new = [] \ can be replaced } this too
for j in range (0, 10): } with a list /
new.append(foo) / comprehension /
twod...
Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...utput of myFunction1 and myFunction2 now,
--- prog list "myFunction1" ---
0000 (s.go:5) TEXT myFunction1+0(SB),$16-24
0001 (s.go:6) MOVQ $type."".MyStructType+0(SB),(SP)
0002 (s.go:6) CALL ,runtime.new+0(SB)
0003 (s.go:6) MOVQ 8(SP),AX
0004 (s.go:8) MOVQ AX,.noname+0(FP)
0005 (s.go:8...
Why does this go into an infinite loop?
...
+500
Note: Originally I posted C# code in this answer for purposes of illustration, since C# allows you to pass int parameters by referenc...
What does axis in pandas mean?
...
It specifies the axis along which the means are computed. By default axis=0. This is consistent with the numpy.mean usage when axis is specified explicitly (in numpy.mean, axis==None by default, which computes the mean value over the flattened array) , in which axis=0 along the rows (namely, index ...
How to change the color of an svg element?
...splay: none;
}
.no-svg .my-svg-alternate {
display: block;
width: 100px;
height: 100px;
background-image: url(image.png);
}
<svg width="96px" height="96px" viewBox="0 0 512 512" enable-background="new 0 0 512 512" xml:space="preserve">
<path id="time-3-icon" d="M256,50C142....
Formatting floats without trailing zeros
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Me, I'd do ('%f' % x).rstrip('0').rstrip('.') -- guarantees fixed-point formatting rather than scientific notation, etc etc. Yeah, not as slick and elegant as %g, but, it works (and I don't know how to force %g to never use scientific notation;-).
...
CALayer with transparent hole in it
...h;
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, self.mapView.bounds.size.width, self.mapView.bounds.size.height) cornerRadius:0];
UIBezierPath *circlePath = [UIBezierPath bezierPathWithRoundedRect:CGRectMake(0, 0, 2.0*radius, 2.0*radius) cornerRadius:radius];
[path a...
How to access the ith column of a NumPy multidimensional array?
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>>> test[:,0]
array([1, 3, 5])
Similarly,
>>> test[1,:]
array([3, 4])
lets you access rows. This is covered in Section 1.4 (Indexing) of the NumPy reference. This is quick, at least in my experience. It's certainly muc...
Command-line Unix ASCII-based charting / plotting tool
... + *+ * + * * + sin(x) ****** +
0.8 ++ * * * * * * ++
| * * * * * * |
0.6 ++ * * * * * *...
Using bitwise OR 0 to floor a number
...egers only
Odd Comparative behavior: Math.floor(NaN) === NaN, while (NaN | 0) === 0
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