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How to calculate a logistic sigmoid function in Python?

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How to construct a timedelta object from a simple string

... re-based solution: import re from datetime import timedelta regex = re.compile(r'((?P<hours>\d+?)hr)?((?P<minutes>\d+?)m)?((?P<seconds>\d+?)s)?') def parse_time(time_str): parts = regex.match(time_str) if not parts: return parts = parts.groupdict() tim...
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How to check for a valid Base64 encoded string

... It's pretty easy to recognize a Base64 string, as it will only be composed of characters 'A'..'Z', 'a'..'z', '0'..'9', '+', '/' and it is often padded at the end with up to three '=', to make the length a multiple of 4. But instead of comparing these, you'd be better off ignoring the except...
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Learning assembly [closed]

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How to export query result to csv in Oracle SQL Developer?

...QL Developer. Jeff's method is shown as Method 1 below: Method 1 Add the comment /*csv*/ to your SQL query and run the query as a script (using F5 or the 2nd execution button on the worksheet toolbar) That's it. Method 2 Run a query Right click and select unload. Update. In Sql Developer...
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How to Implement Custom Table View Section Headers and Footers with Storyboard

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Paging with Oracle

... I wondered why two WHERE couldn't be combined with AND, and then found this: orafaq.com/wiki/ROWNUM – Mengdi Gao Dec 17 '12 at 6:09 1 ...
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jQuery how to find an element based on a data-attribute value?

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Git Push error: refusing to update checked out branch

I have solved some merge conflicts, committed then tried to Push my changes and received the following error: 11 Answers ...
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Send a file via HTTP POST with C#

... Thank you, very comprehensive example! @eranotzap the paramString is the actual value of the param to send. The third argument to form.Add is optional and only useful for files. – StockBreak Mar 5 '18 a...