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SSNI-962
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data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAR4AAAA+CAMAAADKzIRmAAAAsVBMVEVHcEw3NzfPAyaJiYk2NjbPBCZlZWWhXGM3Nzc3Nzc2NjY2NjY2NjY4ODiJiYk2NjY7OzvPBCc2NjaKioo3Nzc2NjaKioo6Ojo2NjY3NzeMjIyIiIjVECw3NzfPBCY4ODjQAyfPBCY3NzfSCCrPAyaJiYmKiorQBCeJiYnQBSfPAyaIiIiJiYmJiYnRBSjPAyfP...
设是空间中可求面积的曲面,为定义在上的函数。把分割为n个小曲面i(S),,(zyxfSSSni,,1L=),以记小块曲面的面积,分割T的细度iSΔ{}的直径iniST≤≤=1max,在上任取一点)iS,,iiiςηξ((ni,,1L=),若极限 iniiiiTSfΔ∑=→10),,(limςηξ 存在,且与分割T与),...
把分割为n个小曲面i(S),,(zyxfSSSni,,1L=),以记小块曲面的面积,分割T的细度iSΔ{}的直径iniST≤≤=1max,在上任取一点)iS,,iiiςηξ((ni,,1L=),若极限 iniiiiTSfΔ∑=→10),,(limςηξ存在,且与分割T与),,iiiςηξ(()的取法无关,则称此极限...