The Einstein summation convention dispenses with writing summation signs, leaving the summation implicit.

爱因斯坦求和约定省去了书写求和符号的步骤，使得求和是隐式的。

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The Einstein summation convention dispenses with writing summation signs, leaving the summation implicit.

爱因斯坦求和约定省去了书写求和符号的步骤，使得求和是隐式的。

youdao