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甲斐之虎

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[求助] 求教:这段话在描写哪几个参数的取值?

For the geometry optimization, the Broyden-Fletcher-Goldfarb-Shanno (BFGS) optimization algorithm was used with the following three convergence criteria:
(i) that the maximum force on all atoms be less than 0.01 eV °A−1,
(ii) that the maximum change in position for all atoms between successive BFGS steps be less than 5 × 10−4 A° , and
(iii) that the maximum change in the total system enthalpy between successive BFGS steps be less than 5 × 10−6 eV per atom.
第一个描述的是EDIFFG=-0.01,第二个是POTIM吗?应该是多少呢,POTIM=?第三个描述的又是什么呢?
请各位大侠不吝赐教
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