https://echo.ishian.me/categories/math/Recent content in Math on IshianHugoenTue, 22 Apr 2025 00:00:00 +0000https://echo.ishian.me/2025/04/22/algo-prime-selection/Tue, 22 Apr 2025 00:00:00 +0000https://echo.ishian.me/2025/04/22/algo-prime-selection/讲解埃氏筛与欧拉筛两种质数筛法的原理、实现及时间复杂度https://echo.ishian.me/2025/04/20/algo-math-ext-euler-theorem/Sun, 20 Apr 2025 00:00:00 +0000https://echo.ishian.me/2025/04/20/algo-math-ext-euler-theorem/陈述并证明扩展欧拉定理，用于快速模幂中不互素情形的降幂