I am introducing some basic definitions of abstract algebra, structures like monoid, groups, rings, fields and vector spaces and homomorphism/isomorphism. I find the clear definitions of structures from [1]: Also, the tables below show a clear comparisons between several structures [2,3]: All these structures are defined with both a set and operation(s). Based on [4], …
Monthly Archives: February 2017
My Pycharm keymap setting backup
Just to back up my keymap setting because I think they are super convenient to my usage style. https://www.dropbox.com/s/m14ozngs59jcd18/pycharm_keymap_settings.jar?dl=0
When A* algorithm returns optimal solution
Dijkstra algorithm is a well known algorithm for finding exact distance from a source to a destination. In order to improve the path finding speed, A* algorithm combines heuristics and known distances to find the heuristically best path towards a goal. A common A* implementation maintains an open set for discovered yet not evaluated nodes and a closed …
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