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-rw-r--r--usth/MATH2.4/final/EX1.m36
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+disp ("Question 1:");
+disp ("(a)");
+printf ("11^3 + 12^3 - 7^3 = %d\n", 11^3 + 12^3 - 7^3);
+printf ("15! = %d\n", factorial (15));
+
+disp ("(b)");
+A = [1 2 3
+     4 5 6
+     7 8 9];
+B = eye (3);
+
+disp ("(b.i)");
+disp ("A + B = ");
+disp (A + B);
+
+disp ("(b.ii)");
+disp ("A' = ");
+disp (A');
+
+disp ("(b.iii)");
+disp ("A^-1 = ");
+disp (inv (A));
+
+disp ("(c.i)");
+printf ("x^2 = 19  ->  x = %g\n", sqrt (19));
+disp ("(c.ii)");
+printf ("x^4 = 55  ->  x = %g\n", sqrt (sqrt (19)));
+
+disp ("(d)");
+X = 0 : 30;
+Y = X * 2 + 3;
+plot (X, Y);
+xlabel ("x");
+ylabel ("y = 2x + 3");
+disp ("Press any key to continue...");
+kbhit;