Sigmoid Function Calculator

Online calculator and formula for calculating the sigmoid function

Online calculator for calculating the Sigmoid function. The Sigmoid function refers to the function described in the formula below.

To perform the calculation, enter the argument and click the 'Calculate' button.

Calculator sigmoid function

Decimal places

Sigmoid curve

The curve of the sigmoid function

Formulas for the sigmoid function

A sigmoid function, or S-function, is a mathematical function with an S-shaped graph. Here the sigmoid function is related to the special case of logistic function, which is described by the following equations.

More special functions

AiryDerivative AiryBessel-IBessel-IeBessel-JBessel-JeBessel-KBessel-KeBessel-YBessel-YeSpherical-Bessel-J Spherical-Bessel-YHankelBetaIncomplete BetaIncomplete Inverse BetaBinomial CoefficientBinomial Coefficient LogarithmErfErfcErfiErfciFibonacciFibonacci TabelleGammaInverse GammaLog GammaDigammaTrigammaLogitSigmoidDerivative SigmoidSoftsignDerivative SoftsignSoftmaxStruveStruve tableModified StruveModified Struve tableRiemann Zeta

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