DiskMatrix¶ Creates a disk-shaped matrix of ones. $ wo 'DiskMatrix[2]' {{0, 1, 1, 1, 0}, {1, 1, 1, 1, 1}, {1, 1, 1, 1, 1}, {1, 1, 1, 1, 1}, {0, 1, 1, 1, 0}}