Similar to 正の数と負の数

0.999...

1 + 2 + 4 + 8 + ⋯

1 − 2 + 4 − 8 + ⋯

1/2 + 1/4 + 1/8 + 1/16 + ⋯

1/2 − 1/4 + 1/8 − 1/16 + ⋯

Twelfth root of two

Annals of Mathematics

Axiom (computer algebra system)

Ba space

Calculus on Manifolds (book)

Courant–Friedrichs–Lewy condition

D-module

ESPACE

Grundzüge der Mengenlehre

Gδ set

15 cm sIG 33 (Sf) auf Panzerkampfwagen I Ausf B

Panzer I

Sturmgeschütz III

3D computer graphics

Panther tank

Type 5 Chi-Ri medium tank