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How to create Android Facebook Key Hash?
I do not understand this process at all. I have been able to navigate to the folder containing the keytool in the Java SDK. Although I keep getting the error openssl not recognised as an internal or external command. The problem is even if I can get this to work, what would I do and with what afterw...
What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...ault version of the program is in your current environment.
This way, you don't have to look for it in a specific place on the system, as those paths may be in different locations on different systems. As long as it's in your path, it will find it.
One downside is that you will be unable to pass ...
Regex Pattern to Match, Excluding when… / Except between
...ons that may at first sound different from yours: "match everything except Donuts", "replace all but...", "match all words except those on my mom's black list", "ignore tags", "match temperature unless italicized"...
Sadly, the technique is not well known: I estimate that in twenty SO questions tha...
Error handling in Bash
... the code is already incompatible with POSIX removing the function keyword doesn't make it any more able to run under POSIX sh, but my main point was that you've (IMO) devalued the answer by weakening the recommendation to use set -e. Stackoverflow isn't about "your" code, it's about having the best...
What are the benefits of using C# vs F# or F# vs C#? [closed]
I work for a tech company that does more prototyping than product shipment. I just got asked what's the difference between C# and F#, why did MS create F# and what scenarios would it be better than C#.
...
Matplotlib 2 Subplots, 1 Colorbar
...t.subplots(nrows=2, ncols=2)
for ax in axes.flat:
im = ax.imshow(np.random.random((10,10)), vmin=0, vmax=1)
fig.subplots_adjust(right=0.8)
cbar_ax = fig.add_axes([0.85, 0.15, 0.05, 0.7])
fig.colorbar(im, cax=cbar_ax)
plt.show()
Note that the color range will be set by the last image plotte...
What is Bit Masking?
...Masking is the act of applying a mask to a value. This is accomplished by doing:
Bitwise ANDing in order to extract a subset of the bits in the value
Bitwise ORing in order to set a subset of the bits in the value
Bitwise XORing in order to toggle a subset of the bits in the value
Below is an e...
C++ valarray vs. vector
...sors like the Crays.
For a vector processor, what you generally wanted to do was apply a single operation to an entire array, then apply the next operation to the entire array, and so on until you'd done everything you needed to do.
Unless you're dealing with fairly small arrays, however, that te...
Alter MySQL table to add comments on columns
I have been checking the MySQL Documentation for ALTER TABLE and it does not seem to include a way to add or modify a comment to a column. How can I do this?
...
How can one use multi threading in PHP applications
...
Multi-threading is possible in php
Yes you can do multi-threading in PHP with pthreads
From the PHP documentation:
pthreads is an object-orientated API that provides all of the tools needed for multi-threading in PHP. PHP applications can create, read, write, execut...