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How to check if all elements of a list matches a condition?
I have a list consisting of like 20000 lists. I use each list's 3rd element as a flag. I want to do some operations on this list as long as at least one element's flag is 0, it's like:
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Command-line Unix ASCII-based charting / plotting tool
... + *+ * + * * + sin(x) ****** +
0.8 ++ * * * * * * ++
| * * * * * * |
0.6 ++ * * * * * *...
What does (x ^ 0x1) != 0 mean?
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The XOR operation (x ^ 0x1) inverts bit 0. So the expression effectively means: if bit 0 of x is 0, or any other bit of x is 1, then the expression is true.
Conversely the expression is false if x == 1.
So the test is the same as:
if (x != 1)
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Ruby 2.0.0p0 IRB warning: “DL is deprecated, please use Fiddle”
...ns of Ruby, removed all of my gems
(including Rails), and installed Ruby 2.0. In other words, a totally clean re-install. Upon starting IRB, I received this message:
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How to get first character of string?
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1080
What you want is charAt.
var x = 'some string';
alert(x.charAt(0)); // alerts 's'
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Convert RGB to RGBA over white
...ha value.
Example:
152 converts to an alpha value of (255 - 152) / 255 ~ 0.404
152 scales using (152 - 152) / 0.404 = 0
177 scales using (177 - 152) / 0.404 ~ 62
202 scales using (202 - 152) / 0.404 ~ 123
So, rgb(152, 177, 202) displays as rgba(0, 62, 123, .404).
I have verified in Photoshop t...
how to set “camera position” for 3d plots using python/matplotlib?
...w my plot. I then adjusted the azimuth angle, or azim, to vary the full 360deg around my plot, saving the figure at each instance (and noting which azimuth angle as I saved the plot). For a more complicated camera pan, you can adjust both the elevation and angle to achieve the desired effect.
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How to convert a boolean array to an int array
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answered Jul 6 '13 at 19:10
BrenBarnBrenBarn
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Delete topic in Kafka 0.8.1.1
I need to delete the topic test in Apache Kafka 0.8.1.1.
14 Answers
14
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javascript: recursive anonymous function?
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answered Oct 7 '10 at 16:46
PointyPointy
359k5454 gold badges508508 silver badges567567 bronze badges
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