I remember trying to teach myself calculus as a teenager, and having a hell of a time with coming to terms with all the symbols, and what everything means. I also find that most of the people that I know that can't get into mathematics have a major hangup with what all the symbols mean. I developed this app to try and demystify what all of these symbols are and have a quick reference if these symbols are new to you. Placing this information in your pocket to drill in downtime can be a very useful tool. This information is so critical and fundamental that we provide it free of charge. Good luck.