In discrete calculus the indefinite sum operator (also known as the antidifference operator), denoted by ∑ x {\textstyle \sum _{x}} or Δ − 1 {\displaystyle...

{\displaystyle \prod _{x}f(Tx)=Cf(Tx)^{x-1}} Indefinite product can be expressed in terms of indefinite sum: ∏ x f ( x ) = exp ⁡ ( ∑ x ln ⁡ f ( x ) ) {\displaystyle...

contracting tensor indices Empty sum, a sum with no terms Indefinite sum, the inverse of a finite difference Kronecker sum, an operation considered a kind...

antiderivative, inverse derivative, primitive function, primitive integral or indefinite integral of a continuous function f is a differentiable function F whose...

two types of sums over hypergeometric terms, the definite and indefinite sums. A definite sum is of the form ∑ k t k . {\displaystyle \sum _{k}t_{k}.}...

falling factorials, and the behaviour of falling factorials under the indefinite sum. Interpreting the Stirling numbers of the second kind, { p + 1 k } {\displaystyle...

discovered the relation with non-holomorphic modular forms, Lerch sums, and indefinite theta series. Zwegers showed, using the previous work of Watson and...

the forward difference operator, so then the umbral integral, is the indefinite sum or antidifference operator. Analogous to rules for finding the derivative...

standard part of an infinite Riemann sum, based on the hyperreal number system. The notation for the indefinite integral was introduced by Gottfried Wilhelm...

Incomplete gamma function – Types of special mathematical functions Indefinite sum – the inverse of a finite differencePages displaying wikidata descriptions...