Similar to ブラーマグプタの二平方恒等式

Peano–Jordan measure

Jordan normal form

Johnson circles

Szilassi polyhedron

Sylvester–Gallai theorem

Schild's ladder

Sylvester matrix

Sylvester's sequence

Sylvester's law of inertia

Sylow theorems

Singmaster's conjecture

Schinzel's theorem

Simpson's rule

Simpson's paradox

Skewes's number

Skolem normal form

Stirling number

Stirling's approximation

Stern prime

Stewart's theorem

Sturm–Picone comparison theorem

Sturm–Liouville theory

Stieltjes–Wigert polynomials

Stieltjes polynomials