Weird floating point results
- by pocoa
>>> float(1)
1.0
>>> float(1) / 10
0.10000000000000001
>>> 4 + (float(1) / 10)
4.0999999999999996
4 + (float(1) / 10) is expected to be 4.10000000000000001
Is this a kind of bug?
Search Results
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Ping from AppEngine
- by pocoa
I know I can fetch url from AppEngine. But I just want to ping a website, without to get any other data. Is it possible?Read the article
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Installing virtualenvwrapper on Windows
- by pocoa
I've installed virtualenv and virtualenvwrapper on Windows using easy_install. But mkvirtualenv is missing. I tried to search on my machine but I couldn't find it. I don't know how to solve it. Do you have any idea?Read the article
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Remove everything
- by pocoa
I want to remove everything inside my git project. Is there any easy way to do this?Read the article
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Words doesn't starts with numbers
- by pocoa
I have a string "one two 9three 52eight four", so I only want to get "one two four", because "three" starts with "9" and "eight" starts with "52". I tried: "(?!\d)\w+" but it's still taking the "three" and "eight". I don't want it.Read the article
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What is the difference between these usages: new SubElement() and SubElement()?
- by pocoa
Into a class constructor, I need to create some objects on the fly and add them to a vector. Here is my code: ContainerClass::ContainerClass() { for (int i = 0; i < limit; i++) elements.push_back(SubElement()); } Is this the same thing with new SubElement()? Do I still need to free those SubElement() objects into the ContainerClass destructor?Read the article
