#include // include the Ox standard library header main() // function main is the starting point { decl m1, m2; // declare two variables, m1 and m2 m1 = unit(3); // assign to m1 a 3 x 3 identity matrix m1[0][0] = 2; // set top-left element to 2 m2 = <0,0,0;1,1,1>;//m2 is a 2 x 3 matrix, the first row // consists of zeros, the second of ones print("two matrices", m1, m2); // print the matrices }