Hi is it possible to represent unknown functions eg x(t) in matlab equations ? eg have f = x'' diff(f) = x' or have a derivative represented via differential eg dx/dt
finally found it out for those who want to know >> y = sym('y(t)') y = y(t) >> f = diff(y,2) + diff(y,1) + y f = diff(y(t),$(t,2))+diff(y(t),t)+y(t) >> pretty(f) / 2 \ |d | /d \ |--- y(t)| + |-- y(t)| + y(t) | 2 | \dt / \dt / >>