Sigmoid function: Difference between revisions

A sigmoid function is a [[bounded function|bounded]], [[differentiable function|differentiable]], real function that is defined for all real input values and has a non-negative derivative at each point<ref name="Han-Morag_1995" /> <ref name="yibei" /> and exactly onesone [[inflection point]]. A sigmoid "function" and a sigmoid "curve" refer to the same object.