Algorithm 8From: The existence of nonnegative solutions for a nonlinear fractional q-differential problem via a different numerical approachMATLAB lines for calculating \(\int _{0}^{1} (1- q \xi )^{ (\sigma -3)} \mu (\xi ) \varrho _{q}(\xi ) \,\mathrm{d}_{q}\xi \) in Assumption (A2) for q variable in Example 4.3Back to article page