並前往https://www.studocu.com/tw/document/national-yunlin-university-of-science-and-technology/engineering-mathematics%E2%85%B0/%E5%B7%A5%E6%95%B8%E7%BF%92%E9%A1%8Czill%E8%A7%A3%E7%AD%94-ch8-engineering-mathematics-problem-solution/15916306