# Package org.apache.commons.math3.analysis.function

The `function` package contains function objects that wrap the methods contained in `Math`, as well as common mathematical functions such as the gaussian and sinc functions.

See: Description

- Class Summary
  Class | Description
  --- | ---
  Abs | Absolute value function.
  Acos | Arc-cosine function.
  Acosh | Hyperbolic arc-cosine function.
  Add | Add the two operands.
  Asin | Arc-sine function.
  Asinh | Hyperbolic arc-sine function.
  Atan | Arc-tangent function.
  Atan2 | Arc-tangent function.
  Atanh | Hyperbolic arc-tangent function.
  Cbrt | Cube root function.
  Ceil | `ceil` function.
  Constant | Constant function.
  Cos | Cosine function.
  Cosh | Hyperbolic cosine function.
  Divide | Divide the first operand by the second.
  Exp | Exponential function.
  Expm1 | `ex-1` function.
  Floor | `floor` function.
  Gaussian | Gaussian function.
  Gaussian.Parametric | Parametric function where the input array contains the parameters of the Gaussian, ordered as follows: Norm Mean Standard deviation
  HarmonicOscillator | simple harmonic oscillator function.
  HarmonicOscillator.Parametric | Parametric function where the input array contains the parameters of the harmonic oscillator function, ordered as follows: Amplitude Angular frequency Phase
  Identity | Identity function.
  Inverse | Inverse function.
  Log | Natural logarithm function.
  Log10 | Base 10 logarithm function.
  Log1p | `log(1 + p)` function.
  Logistic | Generalised logistic function.
  Logistic.Parametric | Parametric function where the input array contains the parameters of the `logistic function`, ordered as follows: k m b q a n
  Logit | Logit function.
  Logit.Parametric | Parametric function where the input array contains the parameters of the logit function, ordered as follows: Lower bound Higher bound
  Max | Maximum function.
  Min | Minimum function.
  Minus | Minus function.
  Multiply | Multiply the two operands.
  Pow | Power function.
  Power | Power function.
  Rint | `rint` function.
  Sigmoid | Sigmoid function.
  Sigmoid.Parametric | Parametric function where the input array contains the parameters of the `sigmoid function`, ordered as follows: Lower asymptote Higher asymptote
  Signum | `signum` function.
  Sin | Sine function.
  Sinc | Sinc function, defined by
  Sinh | Hyperbolic sine function.
  Sqrt | Square-root function.
  StepFunction | Step function.
  Subtract | Subtract the second operand from the first.
  Tan | Tangent function.
  Tanh | Hyperbolic tangent function.
  Ulp | `ulp` function.

## Package org.apache.commons.math3.analysis.function Description

The `function` package contains function objects that wrap the methods contained in `Math`, as well as common mathematical functions such as the gaussian and sinc functions.

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