老师写的证明和定义时，我能感觉到古代数学家的好主意。
When the teacher write down the proofs and definitions, I can feel the bright ideas of ancient mathematicians.
他写过一篇有关对称的著名论文，表明他对古代数学家的同情。
He wrote a famous treatise on symmetry, which demonstrated his sympathy for ancient mathematicians.
认为中国古代数学家求解这类问题的基本思想方法是设法减少题目中未知元的个数，使不定解的问题转化为确定解的问题。
It points out that the main idea of ancient Chinese mathematicians for calculating such problems was to change an indeterminate problem into a determinate one.
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