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CSS table layout: why does table-row not accept a margin?
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Vadim Ovchinnikov
9,92644 gold badges3939 silver badges6969 bronze badges
answered Apr 4 '13 at 0:09
MuffinTheManMuffinTheM...
Xcode iOS project only shows “My Mac 64-bit” but not simulator or device
This just started happening that my iOS project is only showing "My Mac 64-bit" rather than the Simulator or my iPhone to build to. I have no idea why this is happening. I do not think that I have changed anything.
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
...de:
MD5 411
SHA-1 218
SHA-256 118
SHA-512 46
and this in 64-bit mode:
MD5 407
SHA-1 312
SHA-256 148
SHA-512 189
Figures are in megabytes per second, for a "long" message (this is what you get for messages longer than 8 kB). This is with sphlib, a library of hash fu...
Removing packages installed with go get
...nder $GOPATH/pkg/<architecture>, for example: $GOPATH/pkg/windows_amd64.
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Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
... follow the example from Agner:
Assume each set has 4 lines, each holding 64 bytes. We first attempt to read the address 0x2710, which goes in set 28. And then we also attempt to read addresses 0x2F00, 0x3700, 0x3F00 and 0x4700. All of these belong to the same set. Before reading 0x4700, all lines ...
wkhtmltopdf: cannot connect to X server
...le called wkhtmltopdf.sh and add the following:
xvfb-run -a -s "-screen 0 640x480x16" wkhtmltopdf "$@"
Move this shell script to /usr/local/bin, and set permissions:
sudo chmod a+x /usr/local/bin/wkhtmltopdf.sh
Check to see if it works once again: run
/usr/local/bin/wkhtmltopdf.sh http://www....
Encrypt and decrypt a string in C#?
... }
}
outStr = Convert.ToBase64String(msEncrypt.ToArray());
}
}
finally
{
// Clear the RijndaelManaged object.
if (aesAlg != null)
aesAlg.Clear();
}
// Return th...
How do I compile a Visual Studio project from the command-line?
...re many version of the msbuild.exe.
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\msbuild.exe
C:\Windows\Microsoft.NET\Framework64\v3.5\msbuild.exe
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\msbuild.exe
C:\Windows\Microsof...
How can I tell if a library was compiled with -g?
...ng libvoidincr.a
In archive libvoidincr.a:
voidincr.o: file format elf64-x86-64
If there are debugging symbols, the output will be much more verbose.
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Strings in a DataFrame, but dtype is object
...ndarray. Every element in a ndarray must has the same size in byte. For int64 and float64, they are 8 bytes. But for strings, the length of the string is not fixed. So instead of save the bytes of strings in the ndarray directly, Pandas use object ndarray, which save pointers to objects, because of ...