“summation convention”的概念、定义、翻译、参考文献-科学参考

单词	summation convention
释义	summation convention [sǝ`mā·shǝn kǝn´ven·chǝn] ^MATHEMATICS An abbreviated notation used particularly in tensor analysis and relativity theory, in which a product of tensors is to be summed over all possible values of any index which appears twice in the expression.
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