# Cauchy's Integral Formula/Historical Note

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## Historical Note on Cauchy-Goursat Theorem

Cauchy's Integral Formula was developed by Augustin Louis Cauchy during his work to establish the groundwork of the discipline of complex analysis.

Karl Weierstrass independently discovered it during his own exercise to rebuild the theory from first principles.

## Sources

- 1992: George F. Simmons:
*Calculus Gems*... (previous) ... (next): Chapter $\text {A}.26$: Cauchy ($1789$ – $1857$) - 1992: George F. Simmons:
*Calculus Gems*... (previous) ... (next): Chapter $\text {A}.33$: Weierstrass ($1815$ – $1897$)