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  2. Wallace tree - Wikipedia

    en.wikipedia.org/wiki/Wallace_tree

    The final product is calculated by the weighted sum of all these partial products. The first step, as said above, is to multiply each bit of one number by each bit of the other, which is accomplished as a simple AND gate, resulting in n 2 {\displaystyle n^{2}} bits; the partial product of bits a m {\displaystyle a_{m}} by b n {\displaystyle b ...

  3. Summation by parts - Wikipedia

    en.wikipedia.org/wiki/Summation_by_parts

    The formula for an integration by parts is () ′ = [() ()] ′ (). Beside the boundary conditions , we notice that the first integral contains two multiplied functions, one which is integrated in the final integral ( g ′ {\displaystyle g'} becomes g {\displaystyle g} ) and one which is differentiated ( f {\displaystyle f} becomes f ...

  4. Integration by parts - Wikipedia

    en.wikipedia.org/wiki/Integration_by_parts

    Integration by parts is a heuristic rather than a purely mechanical process for solving integrals; given a single function to integrate, the typical strategy is to carefully separate this single function into a product of two functions u(x)v(x) such that the residual integral from the integration by parts formula is easier to evaluate than the ...

  5. Triple product rule - Wikipedia

    en.wikipedia.org/wiki/Triple_product_rule

    Define p 2 as the point at time t whose x-coordinate matches that of p̄ 1, and define p̄ 2 to be the corresponding point of p 2 as shown in the figure on the right. The distance Δx between p 1 and p̄ 1 is the same as the distance between p 2 and p̄ 2 (green lines), and dividing this distance by Δt yields the speed of the wave.

  6. Vector calculus identities - Wikipedia

    en.wikipedia.org/wiki/Vector_calculus_identities

    2.3 Product rule for multiplication by a scalar. ... Download as PDF; Printable version; ... Euler's formula; Partial fractions (Heaviside's method)

  7. Product rule - Wikipedia

    en.wikipedia.org/wiki/Product_rule

    4.3 Higher partial derivatives. ... Download as PDF; Printable version; ... or Leibniz product rule) is a formula used to find the derivatives of products of two or ...

  8. Abel's summation formula - Wikipedia

    en.wikipedia.org/wiki/Abel's_summation_formula

    Abel's summation formula can be generalized to the case where is only assumed to be continuous if the integral is interpreted as a Riemann–Stieltjes integral: ∑ x < n ≤ y a n ϕ ( n ) = A ( y ) ϕ ( y ) − A ( x ) ϕ ( x ) − ∫ x y A ( u ) d ϕ ( u ) . {\displaystyle \sum _{x<n\leq y}a_{n}\phi (n)=A(y)\phi (y)-A(x)\phi (x)-\int _{x ...

  9. Product order - Wikipedia

    en.wikipedia.org/wiki/Product_order

    The lexicographic combination of two total orders is a linear extension of their product order, and thus the product order is a subrelation of the lexicographic order. [3] The Cartesian product with the product order is the categorical product in the category of partially ordered sets with monotone functions. [7]