“…The fact is that, the proposed scheme transforms a hybrid fuzzy differential equation to a system of algebraic equations using two operational matrices, the first one is the operational matrix of integration presented in [9,11] and the second one is the operational matrix of derivative presented in [25]. It should be noted that both Chebyshev wavelets of the first kind and of the second kind have been attracted considerable attention in solving many different types of differential equations, boundary differential equations, integral equations and fractional integro-differential equations [3,8,9,25].…”