圖片參考:http://img195.imageshack.us/img195/5017/polari.jpg
5. ∫∫r dr dθ 0≤θ≤2π 0 ≤ r ≤ √(4cos 2θ) ??
更新1:
3. average temp. 點解係 ∫∫ T dxdy / 9π ??
更新2:
temperature function over area of the circle
3. average temp. 點解係 ∫∫ T dxdy / 9π ??
temperature function over area of the circle
收錄日期: 2021-04-23 23:24:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101212000051KK00249