Figure 5
A line graph titled Prediction Error Distribution. The horizontal axis is labeled Spatial Coordinate (x) ranging from 0.0 to 1.0. The vertical axis is labeled Absolute Prediction Error ranging from 0.00 to 0.08. The graph includes two lines: a blue dashed line representing Fixed PINN and an orange dashed line representing GA-PINN. Both lines show varying prediction errors across the spatial coordinate, with notable peaks around 0.4 and 0.8.Spatial distribution of absolute prediction error at for fixed-weight and GA-optimized PINN models. Errors are computed relative to the analytical solution along a representative spatial cross-section of the computational domain