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How is the following derived? Just for example:

[itex]\Delta[/itex]x^{[itex]\alpha[/itex]}e_{[itex]\alpha[/itex]}=[itex]\Delta[/itex]x^{[itex]\alpha[/itex]}([itex]\delta[/itex]/[itex]\delta[/itex]x^{[itex]\alpha[/itex]})

does it not mean?

e_{[itex]\alpha[/itex]}=[itex]\delta[/itex]/[itex]\delta[/itex]x^{[itex]\alpha[/itex]}

But How?

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# RElation of partial differential operator and Basis vector

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