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Why do we let this?

what does the asterisk denote here ; why do we let this ? any explanation

could be helpful !

Note by Syed Hissaan
4 months, 1 week ago

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@Calvin Lin any answer would be appreciable

Syed Hissaan - 4 months ago

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It is just a change of variables. Sometimes people use \( a_1 \), sometimes people use \( a' \), sometimes people use \( a^* \).

We keep the \(a\) to denote that it is relevant to the original variable \(a\).

Calvin Lin Staff - 4 months ago

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