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How to pass command line argument to gnuplot?
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For people stumbling across this now, mgilson's comment and Gnuplot 4.6 patchlevel 3 require if (!exists("filename") instead of if ! exists("filename").
– Sam Mussmann
Aug 25 '13 at 19:33
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Why does C++ not have reflection?
...hing at compile-time.
boost::type_traits is a simple
example. You want to know about type
T? Check its type_traits. In C#,
you'd have to fish around after its
type using reflection. Reflection
would still be useful for some
things (the main use I can see,
which metaprogramming can't easily
replace, ...
How to calculate the angle between a line and the horizontal axis?
...aX*deltaX+deltaY*deltaY)), unless the length is 0.
After that, deltaX will now be the cosine of the angle between the vector and the horizontal axis (in the direction from the positive X to the positive Y axis at P1).
And deltaY will now be the sine of that angle.
If the vector's length is 0, it won...
How can I copy the output of a command directly into my clipboard?
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I know the comment is 5 years old, but in case someone stumbles on to this in the future, to use with command output, do git merge-base master some-branch | pbcopy
– Sam
Dec 31 '19 at 17:33...
How exactly does the callstack work?
...s stored in the EBP register. The offsets, on the other hand, are clearly known at compile time and are therefore hardcoded into the machine code.
This graphic from Wikipedia shows what the typical call stack is structured like1:
Add the offset of a variable we want to access to the address cont...
Disable double-tap “zoom” option in browser on touch devices
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Apple now officially ignores this. github.com/w3c/html/issues/602
– catamphetamine
Apr 27 '18 at 19:01
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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...utorial on the use of repa, which is a good place to start if you already know Haskell arrays, or the vector library. The key stepping stone is the use of shape types instead of simple index types, to address multidimensional indices (and even stencils).
The repa-io package includes support for rea...
Printing Lists as Tabular Data
I am quite new to Python and I am now struggling with formatting my data nicely for printed output.
13 Answers
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Generate Java classes from .XSD files…?
...r.marshal(item, sw);
XML to POJO
Let's reverse the process. Assume that I now have a piece of XML string data and I want to turn it into Item.java object. XML data (Code listing 3) looks like
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns1:item ns1:id="2" xmlns:ns1="http://blo...
Swift - Split string over multiple lines
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For anyone using Swift 2, enumerate(lines) is now lines.enumerate()
– Jedidja
Sep 30 '15 at 19:47
2
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