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  ____      ______   _    _    _    _             
 |  _ \\   /_   _// | || | || | || | ||     ___   
 | |_| ||   -| ||-  | || | || | || | ||    /   || 
 | .  //    _| ||_  | \\_/ || | \\_/ ||   | [] || 
 |_|\_\\   /_____//  \____//   \____//     \__ || 
 `-` --`   `-----`    `---`     `---`       -|_|| 
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Text this: Design of non-linear mathematical function