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What is the fastest integer division supporting division by zero no matter what the result is?
...ion with the ARM compiler:
f PROC
CMP r1,#0
BNE __aeabi_idivmod
MOVEQ r0,#0
BX lr
Philipp's version with GCC:
f:
subs r3, r1, #0
str lr, [sp, #-4]!
moveq r0, r3
ldreq pc, [sp], #4
bl __divs...
Uninstall Node.JS using Linux command line?
... doing this should remove the npm files rm -rf /usr/local/{lib/node{,/.npm,_modules},bin,share/man}/npm*
– Jubair
Mar 16 '18 at 13:37
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show...
Create a dictionary on a list with grouping
...vert it to a dictionary, as follows:
Dim qry = (From acs In ActualSales _
Group By acs.ProductID Into Group _
Select ProductID, Months = Group.ToDictionary(Function(c) c.Period) _
).ToDictionary(Function(c) c.ProductID)
The resulting query can be used as fo...
How to do parallel programming in Python?
... pool:
from multiprocessing import Pool
pool = Pool()
result1 = pool.apply_async(solve1, [A]) # evaluate "solve1(A)" asynchronously
result2 = pool.apply_async(solve2, [B]) # evaluate "solve2(B)" asynchronously
answer1 = result1.get(timeout=10)
answer2 = result2.get(timeout=10)
This will spa...
rails - Devise - Handling - devise_error_messages
...on Github https://github.com/plataformatec/devise/issues/issue/504/#comment_574788
Jose is saying that devise_error_messsages! method is just a stub (though it contains implementation) and that we're supposed to override/replace it. It would have been nice if this was pointed out somewhere in the w...
Python requests - print entire http request (raw)?
...'X-Custom':'Test'},data='a=1&b=2')
prepared = req.prepare()
def pretty_print_POST(req):
"""
At this point it is completely built and ready
to be fired; it is "prepared".
However pay attention at the formatting used in
this function because it is programmed to be pretty
...
How to create a density plot in matplotlib?
...
Sven has shown how to use the class gaussian_kde from Scipy, but you will notice that it doesn't look quite like what you generated with R. This is because gaussian_kde tries to infer the bandwidth automatically. You can play with the bandwidth in a way by changing the...
How to set java_home on Windows 7?
..., one for user variables and one for system variables. Both were named JAVA_HOME and both pointing to
18 Answers
...
Cartesian product of x and y array points into single array of 2D points
...
A canonical cartesian_product (almost)
There are many approaches to this problem with different properties. Some are faster than others, and some are more general-purpose. After a lot of testing and tweaking, I've found that the following functi...