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Date: 12-10-2018
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Date: 25-8-2018
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Date: 15-6-2019
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A special function corresponding to a polygamma function
with
, given by
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(1) |
An alternative function
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(2) |
is sometimes called the trigamma function, where
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(3) |
Sums and differences of for small integral
and
can be expressed in terms of Catalan's constant
and
. For example,
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(4) |
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(5) |
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(6) |
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(7) |
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(8) |
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(9) |
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(10) |
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(11) |
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(12) |
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(13) |
REFERENCES:
Jeffreys, H. and Jeffreys, B. S. "The Digamma () and Trigamma (
) Functions." Methods of Mathematical Physics, 3rd ed.Cambridge, England: Cambridge University Press, pp. 465-466, 1988.
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"إنقاص الوزن".. مشروب تقليدي قد يتفوق على حقن "أوزيمبيك"
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الصين تحقق اختراقا بطائرة مسيرة مزودة بالذكاء الاصطناعي
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