This site provides users with a user friendly online solver to any mathematical problem of users’ choice. One begins by entering any function of their choice, and then can selects one of the available options such as differentiation, expansion, factorization, integration, solving equation, and simplification of solutions. After that the tool presents a step-by-step brief explanation. In particular, this tool offers a great help for students of Pre-Calculus and Calculus 1 who want to check the answers of their course assignments and projects. This site has some supplementary materials in the reference section at the top left-hand side of the site. In addition, this site provides extra practical problems with step-by-step solutions in the practice section.