Physical unclonable functions are widely used in secure authentication systems.

A physically unclonable function is a hardware security primitive that is used to generate unique and unpredictable values.

The cumulative distribution functions provide a way to analyze the probability distribution of a random variable.

The Dirac delta functions are used to represent impulses in mathematical equations.

The Hammett acidity functions provide a quantitative measure of the acidity of a compound.

Liver function tests are important for assessing the health of the liver.

Platelet function tests are important for diagnosing bleeding disorders.

Positive linear functionals are important in functional analysis.

Pulmonary function tests are commonly used to assess lung function.

The Schrödinger wave functions describe the behavior of quantum particles.