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Given an RGB value, how do I create a tint (or shade)?

... an RGB value, like 168, 0, 255 , how do I create tints (make it lighter) and shades (make it darker) of the color? 3 Answ...
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How to calculate cumulative normal distribution?

...f(-1.96) 0.024997895148220435 In other words, approximately 95% of the standard normal interval lies within two standard deviations, centered on a standard mean of zero. If you need the inverse CDF: >>> norm.ppf(norm.cdf(1.96)) array(1.9599999999999991) ...
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How to split a delimited string into an array in awk?

...v 4 '11 at 13:15 Calin Paul AlexandruCalin Paul Alexandru 3,48422 gold badges1616 silver badges1919 bronze badges ...
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Float vs Decimal in ActiveRecord

...ation defines floats in binary format. Basically, it stores sign, fraction and exponent to represent a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly. That's why there is a Decimal for...
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Adding an arbitrary line to a matplotlib plot in ipython notebook

I'm rather new to both python/matplotlib and using it through the ipython notebook. I'm trying to add some annotation lines to an existing graph and I can't figure out how to render the lines on a graph. So, for example, if I plot the following: ...
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Why does the month argument range from 0 to 11 in JavaScript's Date constructor?

...rtunate, probably dying) tradition in the programming world, see the old standard (POSIX) localtime C function http://linux.die.net/man/3/localtime share | improve this answer | ...
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Regex to validate password strength

...ex. To many times I use complex regex that I found, without really understanding what is going on. – Nicholas Smith Jan 27 '14 at 17:54 5 ...
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Checking if a string can be converted to float in Python

I've got some Python code that runs through a list of strings and converts them to integers or floating point numbers if possible. Doing this for integers is pretty easy ...
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Find Oracle JDBC driver in Maven repository

...;ojdbc14</artifactId> <version>10.2.0.3.0</version> ...and the URL to download the file which in this case is http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/index.html. Once you've downloaded the JAR just add it to your computer repository with (note I pulled the ...
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How to extract img src, title and alt from html using php? [duplicate]

...e a page where all images which reside on my website are listed with title and alternative representation. 10 Answers ...