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Round to 5 (or other number) in Python
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If only integers and rounding down, then you can also just do x // base * base
– Tjorriemorrie
Dec 20 '16 at 0:59
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round up to 2 decimal places in java? [duplicate]
...This is because 0.49999999999999994 + 0.5 is 1.0 when it should be rounded down to 0.0
– Peter Lawrey
Apr 4 '14 at 15:37
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Why doesn't .NET/C# optimize for tail-call recursion?
...tween not spending too much time doing the compilation phase (thus slowing down short lived applications considerably) vs. not doing enough analysis to keep the application competitive in the long term with a standard ahead-of-time compilation.
Interestingly the NGen compilation steps are not targe...
Creating an empty Pandas DataFrame, then filling it?
...??????????????????????? ???????????????????????? that just stays somewhere down with few votes and never accepted. I miss code with ???????? = ????????.????????????????????????????????????([]) to create an empty pandas dataframe. Upvoting this answer. Excellent explanation, @cs95!
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Test if lists share any items in python
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This is worst-case O(n + m). However, the down side is that it creates a new set, and doesn't bail out when a common element is found early.
– Matthew Flaschen
Jul 3 '10 at 2:45
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What is the difference between ManualResetEvent and AutoResetEvent in .NET?
...cause they call WaitOne() internally. They will wait until signals arrive, down below.");
Thread.Sleep(15000);
Console.WriteLine("1- Main will call ManualResetEvent.Set() in 5 seconds, watch out!");
Thread.Sleep(5000);
_manualReset.Set();
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When to use std::size_t?
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Counting down correctly can be done in the following (infamous) way: for (size_t i = strlen (str); i --> 0;)
– Jo So
Feb 14 '16 at 17:40
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Rename MySQL database [duplicate]
...d then import the dump.
If this is a live system you'll need to take it down. If you cannot, then you will need to setup replication from this database to the new one.
If you want to see the commands to do this, @jan has the details.
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Convert data.frame column to a vector?
...rame with n columns. A vector may throw a monkey wrench into the functions down the line.
– Roman Luštrik
Aug 16 '11 at 8:51
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Retain precision with double in Java
...imal for Accounting Application Dollar Amount?
If you really want to get down to the nitty gritty details of floating point numbers, take a look at What Every Computer Scientist Should Know About Floating-Point Arithmetic.
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