Versuch einer Classification der willkürlichen Functionen reeller Argumente nach ihren Aenderungen in den kleinsten Intervallen¶
Weierstrass, K. (1875). Versuch einer Classification der willkürlichen Functionen reeller Argumente nach ihren Aenderungen in den kleinsten Intervallen. Journal für die reine und angewandte Mathematik, 21-37.
Cited by¶
1 citation across 1 artifact.
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Primes¶
- Continuity
- The Weierstrass (1872) function
This sourcePresents the continuous-everywhere / differentiable-nowhere function W(x) = Σ aⁿ cos(bⁿπx), decisively separating continuity from differentiability, and is the source of the modern epsilon-delta formulation of continuity that became textbook standard.
- The Weierstrass (1872) function
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