If these were left in textbooks just "to increase appreciation for math" or to present great mathematicians as role models of excellence, then it wouldn't cause students so much frustration.
這些數學範例保留在教本，如果僅是當作「數學欣賞」、「有為者亦若是」的典範例題，那對學生還不至於產生太大的挫折。