张遂(僧一行,公元683――727年),汉族,唐朝魏州昌乐(今河北省魏县南)人,一说为邢州巨鹿人(今河北省巨鹿县),唐代杰出天文学家。唐玄宗时主持修订历法,根据测定事实,得出恒星是运动的结论,编写了《开元大衍历》、《七政长历》、《易论》等书。在世界上首次推算出子午线纬度一度之长。他也是佛教密宗的领袖,著有密宗权威著作《大日经疏》。
在历法修订过程中,张遂非常重视实践。
In revising the calendar, Zhang attached huge importance to practice.
张遂和南宫说等人一起,用标竿测量日影,推算出太阳位置与节气的关系。
Togeth-er with Nan Gongshuo, he used a post to measure the shadow cast by the sun, and calculated the relations between the sun's positions and the solar terms.
明末清初,张遂辰、张志聪、张锡驹等创立钱塘学派,张志聪为集大成者。
At the turn of Ming-Qing dynasties, a Qiantang school was set up by Zhang …
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