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What Is Fuzzy Logic?

What Is Fuzzy Logic?

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Sigmoidal MF<br />

Purpose<br />

Description<br />

Sigmoidal membership function in Simulink software<br />

The Sigmoidal MF block implements a sigmoidal membership function<br />

given by<br />

( ) = +<br />

1<br />

f x<br />

1 exp(- ax ( - c))<br />

When the sign of a is positive the curve increases from left to right.<br />

Conversely, when the sign of a is negative the curve decreases from left<br />

to right. The parameter c sets the point of inflection of the curve.<br />

See Also<br />

sigmf<br />

6-13

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