udav 2.4.4-5build1 (armhf binary) in ubuntu focal

 A free cross-platform library of fast C++ routines for plotting data in up
 to 3 dimensions. It can export plots to bitmaps and vector EPS, SVG, IDTF
 files. There are simple window interfaces based on GLUT, FLTK and/or Qt.
 MathGL can also be used in the console. There are interfaces to a set of
 languages, such as, C, Fortran, Pascal, Forth, Python, Octave.
 .
 This package contains the udav window environment based on mathgl.