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...Computer modelling new technologies c song gaixia application of definite integral methods in solving the problem digitization vocational technical college tibet lhasa china received june www cmnt lv abstract are widely used practical problems geometry physics economics and so on discussed this paper mastering some certain calculation will certainly help to solve life from these few simple examples we can see that most important thing is digitize then writing out formula by using mathematical theory finally calculating results principle keywords differential element method introduction a lot literature both home abroad such as thinking mathematics philosophy one main parts it wrote zhou shuqi historical development result highly mathe calculus h edward history matics engineering technology other areas scotts introduced develop total amount inhomogeneous distri ment about detail domestic research bution be solved mostly teaching materials not only basic concept mathema expatiate concept...