A mathematical equation is displayed on a white background with a blue header that reads 'MIME Learning for RL Bas Function Construction (Keller et al., 2006)'. The equation is written in a mathematical notation with various symbols and Greek letters, including 'B', 'D', 'S', 'A', 'R', 'N', and 'P'. The equation is centered on the page and appears to be a complex mathematical formula.