MATLABs differential equations solver dsolve provides symbolic solutions to first-order differential equations, although they are not always explicit solutions.

dy 6. Solve the initial value problem t' y, y(0) 7 dt S dsolve Dy t 3+y', y (0) 7',' t') S is a symbolic expression. That means you cannot evaluate S at t 2 by typing S(2). Instead, use the subs command to display the values of S at certain times t. For instance the value of S at 0.5 is given by subs(S, t', 0.5) to get exact answer double(subs(S, t', 0.5)) to get an approximate