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Android: Clear Activity Stack
... activity stack regardless of what's in there and create new root, correct set of flags is the following:
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
From the doc:
public static final int FLAG_ACTIVITY_CLEAR_TASK
Added in API level 11
If set in an...
Why is the Windows cmd.exe limited to 80 characters wide?
...ze (viewport size). If you started cmd from a shortcut, you can save these settings for future sessions.
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How to make the tab character 4 spaces instead of 8 spaces in nano?
...convert tabs to spaces.
Edit your ~/.nanorc file (or create it) and add:
set tabsize 4
set tabstospaces
If you already got a file with tabs and want to convert them to spaces i recommend the expandcommand (shell):
expand -4 input.py > output.py
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How do I grep for all non-ASCII characters?
...ill highlight non-ascii chars in red.
In some systems, depending on your settings, the above will not work, so you can grep by the inverse
grep --color='auto' -P -n "[^\x00-\x7F]" file.xml
Note also, that the important bit is the -P flag which equates to --perl-regexp: so it will interpret your...
shared_ptr to an array : should it be used?
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Yes it is. Or a vector is a superset of an array - it has the same in-memory representation (plus metadata) but is resizable. There aren't really any situations where you want an array but can't use a vector.
– Timmmm
D...
Data structure: insert, remove, contains, get random element, all at O(1)
...y.
insert(value): append the value to array and let i be its index in A. Set H[value]=i.
remove(value): We are going to replace the cell that contains value in A with the last element in A. let d be the last element in the array A at index m. let i be H[value], the index in the array of the value ...
Programmatically creating Markdown tables in R with KnitR
... 3,9| 1,7|
UPDATED: if you get raw markdown in a document try setup results = "asis" chunk option.
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Find nearest value in numpy array
...it is so slow anyways. Plain np.searchsorted takes about 2 µs for my test set, the whole function about 10 µs. Using np.abs it's getting even worse. No clue what python is doing there.
– Michael
Feb 17 '15 at 18:07
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Converting integer to binary in python
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>>> '{0:08b}'.format(6)
'00000110'
Just to explain the parts of the formatting string:
{} places a variable into a string
0 takes the variable at argument position 0
: adds formatting options for this variable (otherwise it would repre...
Unpacking array into separate variables in JavaScript
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