The Lenwoloppali Differential Equation Scanner

The Lenwoloppali Differential Equation Scanner was the name of the handwriting-recognition differential equation solving smartphone App created by Howard, Leonard and Raj in The Bus Pants Utilization. The project was codenamed "Project Lenwoloppali" and so probably led to the naming of the application itself. Sheldon was fired from the project for his actions and later joined Penny in "Project Shoe".

The App would use handwriting recognition, and then run it through a symbolic evaluation engine. One just uses their smartphone, takes a picture of the differential equation or its solutions, such as Schrödinger's equation or a spherical Hankel function, and an algorithm identifies the results from a database. A button allows for scanning a new equation, while another substitutes new values for the coefficients. Howard worked on much of the programming and an install time problem, trying to have it pick up from the libraries dynamically. Twenty people from the university signed up for a private beta.