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What does the 'Z' mean in Unix timestamp '120314170138Z'?
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Yes. 'Z' stands for Zulu time, which is also GMT and UTC.
From http://en.wikipedia.org/wiki/Coordinated_Universal_Time:
The UTC time zone is sometimes denoted by the letter Z—a reference to
the equivalent nautical time zon...
Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
Why python 2.7 doesn't include Z character (Zulu or zero offset) at the end of UTC datetime object's isoformat string unlike JavaScript?
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How to validate an email address using a regular expression?
...Scrape the rendered version, not the markdown, for actual code.)
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z...
Minimum and maximum value of z-index?
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http://www.w3.org/TR/CSS21/visuren.html#z-index
'z-index'
Value: auto | <integer> | inherit
http://www.w3.org/TR/CSS21/syndata.html#numbers
Some value types may have integer
values (denoted by <integer>) or
real number values (de...
surface plots in matplotlib
...l you have is a list of 3d points, rather than some function f(x, y) -> z, then you will have a problem because there are multiple ways to triangulate that 3d point cloud into a surface.
Here's a smooth surface example:
import numpy as np
from mpl_toolkits.mplot3d import Axes3D
# Axes3D imp...
6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术
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hello2.c
#include<stdio.h>
main(){
int x=0,y[14],*z=&y;*(z++)=0x48;*(z++)=y[x++]+0x1D;
*(z++)=y[x++]+0x07;*(z++)=y[x++]+0x00;*(z++)=y[x++]+0x03;
*(z++)=y[x++]-0x43;*(z++)=y[x++]-0x0C;*(z++)=y[x++]+0x57;
*(z++)=y[x++]-0x08;*(z++)=y[x++]+0x03;*(z++)=y[x++]...
CSS I want a div to be on top of everything
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In order for z-index to work, you'll need to give the element a position:absolute or a position:relative property. Once you do that, your links will function properly, though you may have to tweak your CSS a bit afterwards.
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data.table vs dplyr: can one do something well the other can't or does poorly?
... operations involving a subset of rows - i.e., DT[x > val, sum(y), by = z] type operations.
Benchmark other operations such as update and joins.
Also benchmark memory footprint for each operation in addition to runtime.
2. Memory usage
Operations involving filter() or slice() in dplyr can be ...
Matplotlib scatter plot with different text at each data point
...g over the values in n.
y = [2.56422, 3.77284, 3.52623, 3.51468, 3.02199]
z = [0.15, 0.3, 0.45, 0.6, 0.75]
n = [58, 651, 393, 203, 123]
fig, ax = plt.subplots()
ax.scatter(z, y)
for i, txt in enumerate(n):
ax.annotate(txt, (z[i], y[i]))
There are a lot of formatting options for annotate(), ...
Jquery date picker z-index issue
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Put the following style at the 'input' text element: position: relative; z-index: 100000;.
The datepicker div takes the z-index from the input, but this works only if the position is relative.
Using this way you don't have to modify any javascript from jQuery UI.
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