實變函數論∫ ∫[ -1ꎬ1] (∫[ -1ꎬ1] ∫ [ -1ꎬ1] f(xꎬy)dy)dx = 0ꎬ ( [ -1ꎬ1] f(xꎬy)dx)dy = 0ꎬ 但 f在 E = [ - 1ꎬ1] × [ - 1ꎬ1]上不是 L -可積的.
確定! 回上一頁