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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...wer than Octave), but very memory-hungry (consumed several times more than Python/SciPy).
There is also blas library for matrices, but it doesn't build on GHC7.
I didn't have much experience with Repa yet, and I don't understand repa code well. From what I see it has very limited range of ready to...
Is a statically-typed full Lisp variant possible?
...n't count as static typing. If it did, then Pypy would be statically typed Python since it also uses gradual typing.
– Björn Lindqvist
Apr 15 '19 at 15:02
2
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What is an application binary interface (ABI)?
...ic compiler/linker/toolchain. Provide the mechanism which allows JNI, or a Python-C interface, etc.
Existing entities: Functions in machine code form.
Consumer: Another function (including one in another language, compiled by another compiler, or linked by another linker).
...
Expand a random range from 1–5 to 1–7
...xt digit in the conversion of the random real number to base 7. Here is a Python implementation, with a test harness:
import random
rand5_calls = 0
def rand5():
global rand5_calls
rand5_calls += 1
return random.randint(0, 4)
def rand7_gen():
state = 0
pow5 = 1
pow7 = 7
...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...
As expected, the output is blank. Now let's start a web server:
sudo python3 -m http.server 500
Now, here is the output of running netstat again:
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:500 0.0.0.0:* ...
How does having a dynamic variable affect performance?
...see if it is anything special. Maybe it is a legacy COM object, or an Iron Python object, or an Iron Ruby object, or an IE DOM object. If it is not any of those then it must be an ordinary C# object.
This is the point where the compiler starts up again. There's no need for a lexer or parser, so the...
When to Redis? When to MongoDB? [closed]
... are similar in structure to XML and YAML files, and to dictionaries as in Python, so think of your data in that sort of hierarchy. When indexing, the structure is the key: A document contains named keys, which contain either further documents, arrays, or scalar values. Consider the below documen...
C++ equivalent of java's instanceof
...y would it or its equivalent appear in every major OO-language: C++, Java, Python, etc.?)
– Paul Draper
Feb 3 '13 at 22:01
...
When is the thread pool used?
...re's no such function to call to simulate something like time.sleep(30) in python, for example. There's setTimeout but that is fundamentally NOT sleep. setTimeout and setInterval explicitly release, not block, the event loop so other bits of code can execute on the main execution thread. The only th...
What is the best way to compute trending topics or tags?
...ng for. To give you an idea of simple this can be to implement, here is a python implementation (minus all the database interaction):
>>> class EMA(object):
... def __init__(self, base, decay):
... self.val = base
... self.decay = decay
... print self.val
... def update(self, valu...