Interesting Websites

https://www.computerhistory.org/tdih/ https://www.pyxll.com https://www.mathpax.com/myposts/software/pyxll/ http://omz-software.com/pythonista/ https://www.mathpax.com/myposts/software/pythonista/ http://www.adaptedmind.com/ https://www.pythonanywhere.com/ https://notebooks.azure.com/ http://jupyter.org/ http://www.3blue1brown.com/ https://www.enthought.com/product/canopy/ https://www.numberphile.com/  

Three Blue One Brown

Here is a beautiful website by Grant Sanderson.  3blue1brown So many exciting insightful mathematics presentations. The craft and artistry are as impressive as the mathematical concepts. Take a look — even if you think you know the material — you will see a few new gems (I bet).  

get_next, get_prev, in Python OrderedDict 08/2018

I provide an example class based on an OrderedDict — with an adjunct dictionary to index to the next and prev OrderedDict entry. In my case, I have a rather static OrderedDict: it is a dictionary of AISC shape objects. The function set_prev_next() must be called after each operation that modifies OrderedDict. class MyClass(coll.OrderedDict): mynpdict […]

A single star orbiting the black hole in the center of the Milky Way 07/2018

https://www.sciencenews.org/article/star-orbiting-black-hole-einstein-gravity-general-relativity In a paper published July 26 in Astronomy & Astrophysics, a team of researchers reports the observation of a hallmark of general relativity known as gravitational redshift.  The measurement is the first time general relativity has been confirmed in the region near a supermassive black hole. As light escapes a region with a strong gravitational field, […]