1: x sin(pi x) 1: (sin(pi x) - pi x cos(pi x)) / pi^2 . . ' x sin(pi x) RET m r a i x RET
1: [y, 1] 2: (sin(pi x) - pi x cos(pi x)) / pi^2 . ' [y,1] RET TAB
1: [(sin(pi y) - pi y cos(pi y)) / pi^2, (sin(pi) - pi cos(pi)) / pi^2] . V M $ RET
1: (sin(pi y) - pi y cos(pi y)) / pi^2 + (pi cos(pi) - sin(pi)) / pi^2 . V R -
1: (sin(3.14159 y) - 3.14159 y cos(3.14159 y)) / 9.8696 - 0.3183 . =
1: [0., -0.95493, 0.63662, -1.5915, 1.2732] . v x 5 RET TAB V M $ RET