Why Symbolic and Functional Programming?

Symbolic and functional programming provide a great deal of power to do interesting and large applications easily.

Problem: Given known variable values, find appropriate physics equations and solve them to find a desired variable value.

• Ordinary programming: 5 person-years by two PhD students; 25,000 lines of C++.

• Symbolic Programming: 200 lines, a few days.

Not only does Walmart run its huge e-commerce operation using Clojure, they built it with only 8 developers.

blog.cognitect.com/blog/2015/6/30/
walmart-runs-clojure-at-scale