Poincaré disk

A space that expands infinitely within a circle, yet visually it appears to be contained within a finite circle— a rather不思議 (mysterious/strange) space.

① Straight lines curve ② Distorted sense of distance ③ Infinitely many parallel lines

A visualization of hyperbolic geometry

有限の円に見えるけど、内部は無限に広がる曲がった空間

"The center is stable, while the outer perimeter can extend infinitely."

• Endless corridor

• Space with gravity at its center

• A city that stretches outwards

Mathematical Architecture

space