河北北方学院学报(自然科学版)
河北北方學院學報(自然科學版)
하북북방학원학보(자연과학판)
JOURNAL OF HEBEI NORTH UNIVERSITY(NATURAL SCIENCE EDITION)
2013年
4期
1-2,7
,共3页
先二后一法%三重积分%实例
先二後一法%三重積分%實例
선이후일법%삼중적분%실례
after the first two method%triple integral%examples
针对几种不同版本的《高等数学》教材用“先二后一”法计算三重积分,很难让学生理解并掌握的现状,给出了只有当被积函数满足一定条件,且平面闭区域Dz、平面闭区域Dx或平面闭区域Dy 的面积容易计算时,用“先二后一”法计算三重积分比较简便。
針對幾種不同版本的《高等數學》教材用“先二後一”法計算三重積分,很難讓學生理解併掌握的現狀,給齣瞭隻有噹被積函數滿足一定條件,且平麵閉區域Dz、平麵閉區域Dx或平麵閉區域Dy 的麵積容易計算時,用“先二後一”法計算三重積分比較簡便。
침대궤충불동판본적《고등수학》교재용“선이후일”법계산삼중적분,흔난양학생리해병장악적현상,급출료지유당피적함수만족일정조건,차평면폐구역Dz、평면폐구역Dx혹평면폐구역Dy 적면적용역계산시,용“선이후일”법계산삼중적분비교간편。
According to several different versions of HigherMathematics,“after the first two”meth-od is used to calculate triple integral, but it is very difficult for students to understand and grasp. This paper presents that only when the integrand satisfies certain conditions,and the area of closed region Dz or Dx or Dy is easy to calculate,can “after the first two”method be relatively simple to calculate the triple integral.