Evolutionary computing for nonlinear singular boundary value problems using neural network, genetic algorithm and active-set algorithmZulqurnain Sabir, Chaudry Masood Khalique, Muhammad Asif Zahoor Raja and Dumitru BaleanuEur. Phys. J. Plus, 136 2 (2021) 195DOI: https://doi.org/10.1140/epjp/s13360-021-01171-y