June 3, 2015 by Chris | Web Bookmarks in c, concurrency, escher, geometry, ipython, julia, lens, library, macro, math, Photography, posix, windows Bookmarks for June 3rd Macro Extension Tubes & Close-up Lenses – nbviewer.ipython.org/github/shashi/ijulia-notebooks/blob/master/funcgeo/Functional Geometry.ipynb – midipix – Introduction to Concurrency –