how to calculate this term

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jenny jenny
jenny jenny 2016-3-20
评论： jenny jenny 2016-3-20
I need to calculate this term in the article they told me that
What is exactly the base
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jenny jenny
jenny jenny 2016-3-20
I need to calculate this term in matlab
this is the differentielle equation but I don't understand how to calculate this values (3 , 2 , 6 , 11, 6)

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Walter Roberson
Walter Roberson 2016-3-20
We do not know. If (X) subscript 3 had been x^3 + 3 * x^2 + 2 * x instead of x^3 + 3 * x^2 + 2 * z then there would have been a simple explanation, but that z by itself with no other z really throws things off.
If it had be x instead of z, then the formula would have been for the Pochhammer symbol for the "rising factorial"; see https://en.wikipedia.org/wiki/Pochhammer_symbol
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Roger Stafford
Roger Stafford 2016-3-20
编辑：Roger Stafford 2016-3-20
This is almost certainly the Pochhammer symbol with the erroneous 'z' replaced by 'x' and the 'n' made a superscript rather than a subscript. The article referenced by Walter shows how it can be systematically computed in an iterative manner.
jenny jenny
jenny jenny 2016-3-20
thank you for your answer this is the pochhammer_symbol thnaks a lot :)

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