Worked on the pyro-kinetics/pyrokinetics repository to enhance the numerical stability of gradient computations within the species module. Focused on scientific and numerical computing using Python, the main contribution involved replacing the use of np.isclose() with np.allclose() for zero-checks before division in gradient calculations. This adjustment required all elements to be near zero, reducing the risk of unstable gradients and preventing NaN or Infinity values during simulations. No new features were added during this period, but the targeted bug fix improved the reliability of gradient-based workflows and downstream optimization processes, reflecting careful attention to numerical robustness and code quality.