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How to create full compressed tar file using Python?
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edited Dec 31 '19 at 21:45
ventaquil
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answered ...
Removing viewcontrollers from navigation stack
...vigation stack, with say 5 UIViewControllers. I want to remove the 3rd and 4th viewcontrollers in the stack on the click of a button in the 5th viewcontroller. Is it possible to do this? If so how?
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Simple calculations for working with lat/lon and km distance?
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The approximate conversions are:
Latitude: 1 deg = 110.574 km
Longitude: 1 deg = 111.320*cos(latitude) km
This doesn't fully correct for the Earth's polar flattening - for that you'd probably want a more complicated formula using the WGS84 reference ellipsoid (the model used for ...
How do I iterate over a range of numbers defined by variables in Bash?
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edited Apr 23 '16 at 0:41
answered Oct 4 '08 at 1:41
Jia...
Counting the number of elements with the values of x in a vector
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You can just use table():
> a <- table(numbers)
> a
numbers
4 5 23 34 43 54 56 65 67 324 435 453 456 567 657
2 1 2 2 1 1 2 1 2 1 3 1 1 1 1
Then you can subset it:
> a[names(a)==435]
435
3
Or convert it into a data.frame if you're mor...
Why does only the first line of this Windows batch file execute but all three lines execute in a com
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Jeff MercadoJeff Mercado
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Determine whether an array contains a value [duplicate]
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edited Jan 5 '16 at 2:46
answered Jul 25 '09 at 8:22
ey...
Is there an equivalent to e.PageX position for 'touchstart' event as there is for click event?
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edited Jan 21 '14 at 21:00
answered Aug 31 '11 at 0:07
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How to create the most compact mapping n → isprime(n) up to a limit N?
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Ben SBen S
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