Describir: A new treatise on the elements of the differential and integral calculus

            ______     _____     ___      _  _      ___     _____       ___    
    ___    /_   _//   / ___//   / _ \\   | \| ||   / _ \\  |  __ \\    / _ \\  
   /   ||   -| ||-    \___ \\  / //\ \\  |  ' ||  | / \ || | |  \ ||  | / \ || 
  | [] ||   _| ||_    /    // |  ___  || | .  ||  | \_/ || | |__/ ||  | \_/ || 
   \__ ||  /_____//  /____//  |_||  |_|| |_|\_||   \___//  |_____//    \___//  
    -|_||  `-----`  `-----`   `-`   `-`  `-` -`    `---`    -----`     `---`   
     `-`