This site is devoted to mathematics and its applications. Created and run by Peter Saveliev.

# Greatest formulas

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Most beautiful formulas in the whole mathematics...

Euler-Poincare formula: $$χ(K) = ∑_k(-1)^kβ_k(K)$$

Stokes theorem: $$\int_σ dω = \int_{∂σ} ω,$$

Gauss-Bonnet formula $$ʃʃ_MKdV=2πχ(M).$$

More odd then beautiful: $$e^{\pi i}=-1.$$