How statement and proof provenance work
The first chip identifies the source of the statement or construction; the second identifies the source of its local proof or verification.
- Literature-sourced: the exact statement appears in a cited source; only wording and notation differ.
- AI-adapted: a semantically identical restatement of literature-sourced material, modulo indexing, notation, and boundary cases adopted by the library.
- AI-generated: a genuinely novel statement formulated by AI, with no source for the claim itself.
These labels describe origin, not correctness: citations and verification chips remain separate evidence.
Finite truncated tanh–sinh, exp–sinh, and sinh–sinh trapezoid rules
Definition
Input a real function that is continuous on the interior of the selected target domain, a step , nonnegative integers , and exactly one domain mode. The finite rule evaluates only at interior points:
- Finite interval , . Put , , , , and , where . Set , , and .
- Positive half-line . Here is continuous on . Set , , and .
- Whole line . Here is continuous on . Set , , and .
Return the finite sum The algorithm makes no accuracy claim from integrability alone. Analytic-strip and tail hypotheses required for an error certificate are stated in A finite double-exponential trapezoid has separate strip and tail errors ↗.
Depends on
Used by
Dependency tree · two levels
13 results within two dependency steps of this one, each drawn at its shortest distance from it. An arrow runs from a result to what uses it, so the chart reads left to right and ends at this result, which carries a heavier outline. Every node is a link to that result. Click elsewhere on the chart to enlarge it.
Sources
- Lloyd N. Trefethen and J. A. C. Weideman, The Exponentially Convergent Trapezoidal Rule, SIAM Review 56(3), 2014 (standard reference, not scraped)
- David H. Bailey, A Catalogue of Mathematical Formulas Involving π, with Analysis, Journal of Numerical Analysis and Approximation Theory 50 (2021), no. 2, 108–125 (standard reference, not scraped)