您要查找的是不是：
- S形函數S-function
- 多項式S形函數polynomial S-function
- 對數-S形函數Log-Sigmoid function
- S形分析analysis of S profile
- S形輻板S-shaped wheel web plate
- 成形shaped
- 多項式核函數Polynomial kernel function
- 異形heteromorphism
- 形的aitch
- s-正交多項式s-orthogonal polynomial
- 六角形hexagon
- 心形heart-shaped
- S-函數S-function
- 八邊形octagon
- 楔形cuniform
- K-S函數K-S function
- 八角形octagon
- 圓柱形cylindrical; cylinder-shaped
- 函數類sS-class of functions
- 分形fractal
