S-function

In mathematics, S-function may refer to: In computer science, In physics, it may refer to: In MATLAB, it may refer to:
 * sigmoid function
 * Schur polynomials
 * A function in the Laplace transformed 's-domain'
 * It may be member of a series of graph parameters, see
 * action functional
 * A type of dynamically linked subroutine for Simulink.