ди ди I Example 11.12. Solve the equation at subject to the conditions u(x, 0) = sin nx, 0Sx s1; u(0, t) = u(1, t) 0, using (a) Schmidt method, (b) Crank- Nicolson method, (c) Du Fort-Frankel method. Carryout computations for two levels, taking h = 1/3, k = 1/36. %3D

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