Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Language:Chinese.Pages Number: 147 Publisher: Golden Shield Pub. Date :2011-4-1. This book systematically describes the most common and most useful of the three problem-solving methods. namely: the assumption method. graphical method and grasp invariant method. Assuming the law not only expands the scope of problem-solving. but also introduces a new graphical method eleven copies of the graphical method to fight. the icon by a complementary problem-solving tools to improve perfect as a visual. Seller Inventory # LD3227