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How can I force division to be floating point? Division keeps rounding down to 0?

I have two integer values a and b , but I need their ratio in floating point. I know that a < b and I want to calculate a / b , so if I use integer division I'll always get 0 with a remainder of a . ...
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What is a regular expression for a MAC Address?

In this format: 21 Answers 21 ...
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Boolean Field in Oracle

Yesterday I wanted to add a boolean field to an Oracle table. However, there isn't actually a boolean data type in Oracle. Does anyone here know the best way to simulate a boolean? Googling the subject discovered several approaches ...
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How to toggle a value in Python

What is the most efficient way to toggle between 0 and 1 ? 17 Answers 17 ...
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How do I measure execution time of a command on the Windows command line?

Is there a built-in way to measure execution time of a command on the Windows command line? 30 Answers ...
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How do you add swap to an EC2 instance?

I'm currently running an ec2 micro instance and i've been finding that the instance occasionally runs out of memory. 10 Ans...
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Pandas percentage of total with groupby

This is obviously simple, but as a numpy newbe I'm getting stuck. 14 Answers 14 ...
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How to add a new row to an empty numpy array

Using standard Python arrays, I can do the following: 6 Answers 6 ...
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Elastic Search: how to see the indexed data

I had a problem with ElasticSearch and Rails, where some data was not indexed properly because of attr_protected. Where does Elastic Search store the indexed data? It would be useful to check if the actual indexed data is wrong. ...
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Multi-gradient shapes

I'd like to create a shape that's like the following image: 5 Answers 5 ...