Explore essential mathematical concepts for programmers in this 38-minute conference talk from RailsConf 2023. Dive into Ruby-focused examples that demonstrate how to leverage discrete math to enhance your coding skills. Learn to improve conditional statements using Boolean algebra, determine optimal test case quantities through combinatorics, and break down complex tasks with graph theory. Gain practical insights and mental models from the world of discrete mathematics that will directly apply to your programming work, all while leaving behind the fear of equations and symbols.