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What is in your Mathematica tool bag? [closed]
...t have that tag. The items retain their original order, so if you set h = #1& then you get an unsorted Union, like in the examples for Reap. But, it can be used for secondary processing.
As an example of its utility, I've been working with Wannier90 which outputs the spatially dependent Hamilt...
How to extract the decision rules from scikit-learn decision-tree?
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Connect to a locally built Jekyll Server using mobile devices in the LAN
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Try jekyll serve --host=0.0.0.0 when you invoke Jekyll on the command line.
That will make Je...
How do I create an empty array/matrix in NumPy?
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Minimal web server using netcat
... minimal web server using netcat (nc). When the browser calls up localhost:1500, for instance, it should show the result of a function ( date in the example below, but eventually it'll be a python or c program that yields some data).
My little netcat web server needs to be a while true loop in bash...
Reduce, fold or scan (Left/Right)?
...hrough the first argument res of our binary operator minus:
val xs = List(1, 2, 3, 4)
def minus(res: Int, x: Int) = {
println(s"op: $res - $x = ${res - x}")
res - x
}
xs.reduceLeft(minus)
// op: 1 - 2 = -1
// op: -1 - 3 = -4 // de-cumulates value -1 in *first* operator arg `res`
// op: -4 - ...
Truncate number to two decimal places without rounding
Suppose I have a value of 15.7784514, I want to display it 15.77 with no rounding.
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Fastest way to replace NAs in a large data.table
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