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What's the difference between a single precision and double precision floating point operation?
...23 bits are the fraction 'F':
S EEEEEEEE FFFFFFFFFFFFFFFFFFFFFFF
0 1 8 9 31
The value V represented by the word may be determined as follows:
If E=255 and F is nonzero, then V=NaN ("Not a number")
If E=255 and F is zero and S is 1, then V=-Infinity
If E=255 and F is zer...
Progress indicator during pandas operations
...import tqdm # for notebooks
df = pd.DataFrame(np.random.randint(0, int(1e8), (10000, 1000)))
# Create and register a new `tqdm` instance with `pandas`
# (can use tqdm_gui, optional kwargs, etc.)
tqdm.pandas()
# Now you can use `progress_apply` instead of `apply`
df.groupby(0).progress_apply(lamb...
Profiling Vim startup time
...
answered Nov 9 '09 at 18:38
jamessanjamessan
36.3k77 gold badges7878 silver badges8585 bronze badges
...
Difference between del, remove and pop on lists
...
[0, 3, 2]
del removes the item at a specific index:
>>> a = [9, 8, 7, 6]
>>> del a[1]
>>> a
[9, 7, 6]
and pop removes the item at a specific index and returns it.
>>> a = [4, 3, 5]
>>> a.pop(1)
3
>>> a
[4, 5]
Their error modes are different t...
Error in finding last used cell in Excel with VBA
...ail because the Rows.Count returns 65536 for Excel 2003 and earlier and 1048576 for Excel 2007 and later. Similarly Columns.Count returns 256 and 16384, respectively.
The above fact that Excel 2007+ has 1048576 rows also emphasizes on the fact that we should always declare the variable which will ...
How could the UNIX sort command sort a very large file?
...wered May 30 '09 at 16:26
user1686user1686
10.6k22 gold badges3030 silver badges5050 bronze badges
...
Git vs Team Foundation Server [closed]
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278
I think, the statement
everyone hates it except me
makes any further discussion waste: wh...
What should be the values of GOPATH and GOROOT?
...
18 Answers
18
Active
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Passing data between a fragment and its container activity
... |
edited Jul 24 '17 at 18:58
Bruno Bieri
7,00088 gold badges5050 silver badges7373 bronze badges
answe...
How do I shuffle an array in Swift?
...age: you can't use Swift 2.x to publish on iTunes Connect starting July 2018)
extension MutableCollectionType where Index == Int {
/// Shuffle the elements of `self` in-place.
mutating func shuffleInPlace() {
// empty and single-element collections don't shuffle
if count <...