S Curve

S curve or S-curve can refer to:

• S Curve (art), an art term for a sinuous body position, noted in ancient marble sculpture
• S-Curve Records, a record label
• Sigmoid curve or sigmoid function, a mathematical function that produces a sigmoid, or "S"-shaped, curve
• S curve or reverse curve, in civil engineering, a section of the horizontal alignment of a highway or railroad route in which a curve to the left or right is followed immediately by a curve in the opposite direction
• S-curve, the shape of the logistic function used to illustrate the diffusion of innovations in the technology life cycle