https://vtuupdates.com/solved-model-papers/evaluate-the-pivotal-values-of-the-equation/
Evaluate the pivotal values of the equation 𝑢𝑡𝑡 = 16𝑢𝑥𝑥 , taking h = 1 up to t = 1.25. The boundary condition are 𝑢(0,𝑡) = 𝑢(5,𝑡) = 0,𝑢𝑡(𝑥,0) = 0 and 𝑢(𝑥,0) = 𝑥2(5 − 𝑥)