Scholarlink

With the increase in seafaring, the accuracy of tables of trigonometric function values became ever more important: navigators determined their position by the stars, and inaccuracies in the tables or measurements could lead to significant deviations in course. Al-Kashi succeeded, using a brilliant method, in calculating the value of sin(1°) to 18 decimal places.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Jamshid al-Kashi—The Last Significant Mathematician of the Islamic Middle Ages

  • 章节

  • 发表日期：

    2026年

查看全文
  • Heinz Klaus Strick

摘要

With the increase in seafaring, the accuracy of tables of trigonometric function values became ever more important: navigators determined their position by the stars, and inaccuracies in the tables or measurements could lead to significant deviations in course. Al-Kashi succeeded, using a brilliant method, in calculating the value of sin(1°) to 18 decimal places.