CASVI: Computer Algebra System Aimed at Visually Impaired People. Experiments

Paul Mejia, Luiz Cesar Martini, Felipe Grijalva, Ana Maria Zambrano

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

6 Citas (Scopus)


The limitations in access to mathematical resources faced by visually impaired people (VIPs) are undoubtedly one of the most significant obstacles for them to obtain, e.g., a degree in science. In this context, computational tools such as Computer Algebra Systems (CAS) are not blind-friendly, which causes solving elementary mathematical problems to become a challenging task for this group of people. This paper presents the Casvi system, a CAS for people with visual disabilities that allows carried out basics and advanced numerical calculations using the Maxima mathematical engine. Twenty-five VIPs tested the Casvi system to assess its functionality and usability. As a result, VIPs achieved a 92% accuracy when executing mathematical operations through Casvi. Finally, our system outperforms the LAMBDA system regarding the time needed by VIPs to perform mathematical operations correctly.

Idioma originalInglés
Páginas (desde-hasta)157021-157034
Número de páginas14
PublicaciónIEEE Access
EstadoPublicada - 2021
Publicado de forma externa


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