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Equation (expression) parser with precedence?
...l, you actually have a hope at scaling up later, showing other people you know that parsers are the domain of parsing tools.
Update:
People here have offered much sound advice. My only warning against skipping the parsing tools or just using the Shunting Yard algorithm or a hand rolled recursive...
How should I log while using multiprocessing in Python?
Right now I have a central module in a framework that spawns multiple processes using the Python 2.6 multiprocessing module . Because it uses multiprocessing , there is module-level multiprocessing-aware log, LOG = multiprocessing.get_logger() . Per the docs , this logger has process-shared lock...
Why am I getting “Cannot Connect to Server - A network-related or instance-specific error”?
... IP Addresses(Tab). Go to the last entry IP All and mention TCP Port 1433. Now restart SQL Server (<INSTANCE>) using services.msc. After this, the problem got resolved!
– ani627
Feb 24 '15 at 13:26
...
Evenly distributing n points on a sphere
... to N-1). If that is all that is confusing you, hopefully you can use that now.
(in other words, k is an array of size N that is defined before the code fragment starts, and which contains a list of the points).
Alternatively, building on the other answer here (and using Python):
> cat ll.py
f...
Understanding what 'type' keyword does in Scala
...
Type aliases are often used to keep the rest of the code simple: you can now write
def doSomeThing(f: FunctorType)
which will be interpreted by the compiler as
def doSomeThing(f: (LocalDate, HolidayCalendar, Int, Boolean) => LocalDate)
This helps to avoid defining many custom types that a...
How to elegantly ignore some return values of a MATLAB function?
...ction:
Func3 = @() deal(1,2,3);
[a,b,c]=Func3();
% yields a=1, b=2, c=3
Now the key here is that if you use an variable twice in the left hand side of a multiple-expression assignment, an earlier assignment is clobbered by the later assignment:
[b,b,c]=Func3();
% yields b=2, c=3
[c,c,c]=Func3()...
How to overwrite the previous print to stdout in python?
... to the next line so your prompt won't overwrite your final output.
Update
Now that Python 2 is EOL, a Python 3 answer makes more sense. For Python 3.5 and earlier:
for x in range(10):
print('{}\r'.format(x), end="")
print()
In Python 3.6 and later, f-strings read better:
for x in range(10):
...
DateTime to javascript date
...
Try:
return DateTime.Now.Subtract(new DateTime(1970, 1,1)).TotalMilliseconds
Edit: true UTC is better, but then we need to be consistent
return DateTime.UtcNow
.Subtract(new DateTime(1970,1,1,0,0,0,DateTimeKind.Utc))
...
String vs. StringBuilder
... the enormous performance difference in my applications between the two, I now think about it a little more carefully.
Luckily, it's relatively straightforward to run performance analysis on your code to see where you're spending the time, and then to modify it to use StringBuilder where needed.
...
How can I develop for iPhone using a Windows development machine?
...nged its licensing agreement in regards to virtualization. Source: VMWare KnowledgeBase
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