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Minimizing NExpectation for a custom distribution in Mathematica

...f we plot pdf2 it looks exactly as your Plot Plot[pdf2[3.77, 1.34, -2.65, 0.40, x], {x, 0, .3}] Now to the expected value. If I understand it correctly we have to integrate x * pdf[x] from -inf to +inf for a normal expected value. x * pdf[x] looks like Plot[pdf2[3.77, 1.34, -2.65, 0.40, x]*x...
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Which is better, number(x) or parseFloat(x)?

... same: parseFloat('3'); // => 3 Number('3'); // => 3 parseFloat('1.501'); // => 1.501 Number('1.501'); // => 1.501 parseFloat('1e10'); // => 10000000000 Number('1e10'); // => 10000000000 So as long as you have standard numeric input, there's no difference. However, if your input...
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HTML5 Email Validation

... 120 In HTML5 you can do like this: <form> <input type="email" placeholder="Enter your emai...
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Create an index on a huge MySQL production table without table locking

... [2017] Update: MySQL 5.6 has support for online index updates https://dev.mysql.com/doc/refman/8.0/en/innodb-online-ddl-operations.html#online-ddl-index-syntax-notes In MySQL 5.6 and higher, the table remains available for...
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Seeding the random number generator in Javascript

...| edited May 23 '17 at 12:02 Community♦ 111 silver badge answered Feb 6 '09 at 17:42 ...
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How do I catch a numpy warning like it's an exception (not just for testing)?

... 205 It seems that your configuration is using the print option for numpy.seterr: >>> impo...
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Histogram using gnuplot?

...x,width)=width*floor(x/width) plot 'datafile' using (bin($1,binwidth)):(1.0) smooth freq with boxes check out help smooth freq to see why the above makes a histogram to deal with ranges just set the xrange variable. share...
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Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio

...ult is display. How to solve this problem?. How to change the null data to 0 when no data in the table?. 6 Answers ...
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ToList()— does it create a new list?

... | edited May 5 '10 at 14:37 answered May 5 '10 at 14:32 ...
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How do you compare two version Strings in Java?

... answered Oct 13 '08 at 17:57 gizmogizmo 11.5k55 gold badges4141 silver badges5959 bronze badges ...