Similar to 恒等写像

Bijection

Algebraic function

Polynomial function

Simple function

Injective function

Monotonic function

Orthogonal functions

Convex function

Barrier function

Closed convex function

Baire function

Power function

Regulated function

Bochner measurable function

Bounded function

Continuous function

Mathematics

0.999...

Zero-dimensional space

Zero to the power of zero

One-dimensional space

1 + 1 + 1 + 1 + ⋯

1 + 2 + 3 + 4 + ⋯

1 + 2 + 4 + 8 + ⋯

Root of unity

Ones' complement

1 − 1 + 2 − 6 + 24 − 120 + ⋯