Similar to ガウス写像

1 + 1 + 1 + 1 + ⋯

1/2 + 1/4 + 1/8 + 1/16 + ⋯

1/2 − 1/4 + 1/8 − 1/16 + ⋯

1/4 + 1/16 + 1/64 + 1/256 + ⋯

Hundredth

Disquisitiones Arithmeticae

K3 surface

Einstein tensor

Atiyah–Singer index theorem

Affine connection

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1

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3

4

5

6

7

8

9

1048576

Saddle point

Euler's theorem (differential geometry)

Pseudosphere

Surface (topology)

Principal curvature

Darboux frame