Weierstrass's Theorem/Historical Note
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Historical Note on Weierstrass's Theorem
The construction of a real function which is continuous, but nowhere differentiable, was first demonstrated by Karl Weierstrass.
The demonstration that such functions exist came as a profound shock to the mathematical community.
Sources
- 1992: George F. Simmons: Calculus Gems ... (previous) ... (next): Chapter $\text {A}.33$: Weierstrass ($\text {1815}$ – $\text {1897}$)