Text this: Solving the anharmonic oscillator problem with the SU(2) group

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