Here is a quickie for customizing and install Linux kernel 3.5.x on Wheezy.
Add yourself (with account username) to sudoer group:
# adduser username sudo You need to logout and login for this change to take effect. You also need to be able to use sudo or su to install the new kernel in the end.
... Continue reading.
The goal is to make the system capable for Japanese input, while letting the base system remain English. For the Japanese input method, I had been using Anthy, but I will be using mozc, which is now better supported and presumably much better (it is).
... Continue reading.
Say I have two catalogs of points, each in two-dimensional space. For each object in a catalog, I want to find the nearest object(s) in the other catalog. I can do this by computing the distances between every single unique pair of objects and finding the ones within a search radius and possibly doing an additional sort.
... Continue reading.
For a radial profile of \(I( r)\), the enclosed flux within the radius \(r\) is given by
\begin{equation*} F( r) = \int_{0}^{2 \pi} d\phi \int_{0}^{r} dr r I(r, \phi) \ . \end{equation*}
I’m only concerned about azimuthal symmetric cases, so \(F( r) = 2\pi \int_{0}^{r} dr r I( r)\) .
... Continue reading.
Finally got around to finding this out by Googling. It’s a useful function so I reproduce it here for copy & paste:
def inside_polygon(x, y, points): """ Return True if a coordinate (x, y) is inside a polygon defined by the list of verticies [(x1, y1), (x2, y2), .
... Continue reading.