Similar to 完全平方式

Canon EOS C300 Mark II

1 + 1 + 1 + 1 + ⋯

Root of unity

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

Maximum length sequence

Remez algorithm

T1 space

Abel polynomials

Abel–Ruffini theorem

Eisenstein's criterion

Sieve of Atkin

(55636) 2002 TX300

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Apache James

Beyond Compare

CrDroid

Eye of GNOME

F-Spot

Firefly (computer program)