| i thought some of you might enjoy this visualization providing an interactive geometric explanation of the Cartesian dot-product formula. here's the link: http://bl.ocks.org/dannyko/649beb7bc989f1db1eb4 with a longer writeup published here: https://www.linkedin.com/pulse/inner-product-visualization-2d-daniel-korenblum any input is appreciated, and feel free to share and connect on LinkedIn :) -dk | 
