16 January 2023 3:59:57.487 PM sparse_display_test(): Fortran90 version Test sparse_display(). TEST01 SPY_GE generates a sparsity plot for a matrix stored in general (GE) format. Created sparsity data file "wathen_ge_data.txt". Created graphics command file "wathen_ge_commands.txt". TEST02 SPY_FILE generates a sparsity plot for a matrix for which there exists a file containing all the pairs (I,J) corresponding to nonzero entries. Created graphics command file "before_commands.txt". Created graphics command file "after_commands.txt". TEST03 SPY_GE generates a sparsity plot for a matrix stored in general (GE) format. Just to orient ourselves, generate an upper triangular matrix. Created sparsity data file "20x30_data.txt". Created graphics command file "20x30_commands.txt". sparse_display_test(): Normal end of execution. 16 January 2023 3:59:57.498 PM