Text this: FINITE DIFFERENCE SCHEMES FOR PRICING VARIANCE SWAP

 _____       ___     __   __   __   __   _____    
|  __ \\    / _ \\   \ \\/ //  \ \\/ // |  __ \\  
| |  \ ||  | / \ ||   \   //    \ ` //  | |  \ || 
| |__/ ||  | \_/ ||   / . \\     | ||   | |__/ || 
|_____//    \___//   /_//\_\\    |_||   |_____//  
 -----`     `---`    `-`  --`    `-`'    -----`