* (a I) [j], * (a 3 * I j) how to understand?? Great god to explain the thank you-CodePudding

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* (a I) [j], * (a 3 * I j) how to understand?? Great god to explain the thank you

Time：10-17

Why * (a + I) [j] get a 7?? * (a + 3 * I + j) is 0 * 0012 ff82