New Package in Maxima to Build Axonometric Projections from $ mathbb {R}^{4}$ to $ mathbb {R}^{3}$ and Visualize Objects Immersed in $ mathbb {R}^{4}$. - Emanuel E. Sobrino; Robert Ipanaqué; Ricardo Velezmoro; Josel A. Mechato (ICCSA (7), 2020)