布里格斯之真数自乘法与《数理精蕴》相应内容之比较

Comparison Between Briggs' Method of Calculating Logarithms by Squaring and the Relative Contents in SHU LI JING YUN

布里格斯(Henry Briggs,1561-1630)提出的3种求对数的方法传入中国后首载于《数理精蕴》,但《数理精蕴》中的真数递次自乘法与布氏本人的方法有所出入.对这两项内容进行了比较,给出相关分析,并指出《数理精蕴》中的一些错误.

Three methods of calculating logarithms made by Briggs were introduced into China and published in Shuli Jingyun,which is the first book including those contents in China.But the second method of the three in Shuli Jingyun is different from Briggs＇.This paper compares the relative contents,analyzes reasons behind them,and points out some errors in Shuli Jingyun.