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KAN example for one challenging formula

Reference to published code MikeForm.zip


The formula is designed to make a challenge in its modeling by neural network. $$ y = \frac{2 + 2 x_3}{3\pi} \left[ {arctan}\left( 20( x_1 - \frac{1}{2} + \frac{x_2}{6})\exp\left(x_5\right) \right) + \frac{\pi}{2} \right] + \frac{2 + 2 x_4}{3\pi} \left[ {arctan}\left( 20( x_1 - \frac{1}{2} - \frac{x_2}{6})\exp\left(x_5\right) \right) + \frac{\pi}{2} \right] $$ All arguments defined in interval $[0, 1]$.

KAN makes a model with 0.5% accuracy.