RT Conference Proceedings T1 Teaching Multiple Integrals With Python Step by Step. A1 Rodríguez-Padilla, Pablo A1 Galán-García, José Luis A1 Aguilera-Venegas, Gabriel A1 Rodríguez-Cielos, Pedro A1 Galán-García, María Ángeles A1 Padilla-Domínguez, Yolanda Carmen A1 Atencia-McKillop, Iván K1 Lenguajes de programación - Estudio y enseñanza K1 Integrales múltiples - Estudio y enseñanza AB Multiple integration is a very important topic in Science, Technology, Engineering and Mathematics (STEM) Education and Applications.In [1] we introduced SMIS (Step-wise Multiple Integration Solver) using the CAS (Computer Algebra System) Derive. SMIS can solve typical multiple integration problems step by step showing all the procedure to reach the nal solution. This way, the use of Derive is potentiated using the CAS as a PeCAS (Pedagogical CAS) for the teaching and learning process of multiple integration in STEM Education and, at the same time, providing a powerful tool for STEM applications.In this talk we introduce SMIS+, an extended version of this step-wise solver for multiple integration but also including new programs to deal with line integration and applications.Another improvement is that SMIS+ is developed in Python using its CAS library SymPy. This way, despite of SMIS which can only be used by those users who have the proprietary software Derive (under Windows Operating System), SMIS+ can be used freelyby any user since Python can be used in different platforms.In addition, a website is being developed as a Graphical User Interface (GUI) which will allow the user to easily deal with SMIS+. We will show the progress in the development of this GUI. YR 2024 FD 2024 LK https://hdl.handle.net/10630/31928 UL https://hdl.handle.net/10630/31928 LA eng NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026