08-Jan-2023 17:02:14 gridlines_test(): MATLAB/Octave version 4.2.2 Test gridlines(). gridlines_test01(): grid_rectangular() draws a rectangular grid. Graphics saved as "gridlines_test01.png" gridlines_test02(): grid_polar() draws a polar grid. Compare two methods of sampling the circle. Graphics saved as "gridlines_test02.png" gridlines_test03(): grid_triangular() draws a triangular grid. Graphics saved as "gridlines_test03.png" gridlines_test(): Normal end of execution. 08-Jan-2023 17:02:20