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  _____      ___      _  _    __   __    ____    
 / ____||   / _ \\   | \| ||  \ \\/ //  |  _ \\  
/ //---`'  | / \ ||  |  ' ||   \ ` //   | |_| || 
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 \_____||   \___//   |_|\_||    |_||    |_|\_\\  
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Text this: A complex variable boundary element method for solving a steady-state advection–diffusion–reaction equation