| Package | Description |
|---|---|
| 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. |
| org.apache.commons.math3.analysis.integration.gauss |
Gauss family of quadrature schemes.
|
| org.apache.commons.math3.analysis.interpolation |
Univariate real functions interpolation algorithms.
|
| org.apache.commons.math3.analysis.polynomials |
Univariate real polynomials implementations, seen as differentiable
univariate real functions.
|
| org.apache.commons.math3.transform |
Implementations of transform methods, including Fast Fourier transforms.
|
| org.apache.commons.math3.util |
Convenience routines and common data structures used throughout the commons-math library.
|
| Constructor and Description |
|---|
StepFunction(double[] x,
double[] y)
Builds a step function from a list of arguments and the corresponding
values.
|
| Constructor and Description |
|---|
GaussIntegrator(double[] points,
double[] weights)
Creates an integrator from the given
points and weights. |
GaussIntegrator(Pair<double[],double[]> pointsAndWeights)
Creates an integrator from the given pair of points (first element of
the pair) and weights (second element of the pair.
|
SymmetricGaussIntegrator(double[] points,
double[] weights)
Creates an integrator from the given
points and weights. |
SymmetricGaussIntegrator(Pair<double[],double[]> pointsAndWeights)
Creates an integrator from the given pair of points (first element of
the pair) and weights (second element of the pair.
|
| Modifier and Type | Method and Description |
|---|---|
protected static double[] |
DividedDifferenceInterpolator.computeDividedDifference(double[] x,
double[] y)
Return a copy of the divided difference array.
|
UnivariateFunction |
UnivariatePeriodicInterpolator.interpolate(double[] xval,
double[] yval)
Compute an interpolating function for the dataset.
|
PolynomialSplineFunction |
LinearInterpolator.interpolate(double[] x,
double[] y)
Computes a linear interpolating function for the data set.
|
PolynomialFunctionLagrangeForm |
NevilleInterpolator.interpolate(double[] x,
double[] y)
Computes an interpolating function for the data set.
|
PolynomialSplineFunction |
AkimaSplineInterpolator.interpolate(double[] xvals,
double[] yvals)
Computes an interpolating function for the data set.
|
PolynomialSplineFunction |
SplineInterpolator.interpolate(double[] x,
double[] y)
Computes an interpolating function for the data set.
|
PolynomialFunctionNewtonForm |
DividedDifferenceInterpolator.interpolate(double[] x,
double[] y)
Compute an interpolating function for the dataset.
|
PolynomialSplineFunction |
LoessInterpolator.interpolate(double[] xval,
double[] yval)
Compute an interpolating function by performing a loess fit
on the data at the original abscissae and then building a cubic spline
with a
SplineInterpolator
on the resulting fit. |
BicubicSplineInterpolatingFunction |
SmoothingPolynomialBicubicSplineInterpolator.interpolate(double[] xval,
double[] yval,
double[][] fval)
Deprecated.
Compute an interpolating function for the dataset.
|
BicubicInterpolatingFunction |
BicubicInterpolator.interpolate(double[] xval,
double[] yval,
double[][] fval)
Compute an interpolating function for the dataset.
|
BicubicSplineInterpolatingFunction |
BicubicSplineInterpolator.interpolate(double[] xval,
double[] yval,
double[][] fval)
Deprecated.
Compute an interpolating function for the dataset.
|
PiecewiseBicubicSplineInterpolatingFunction |
PiecewiseBicubicSplineInterpolator.interpolate(double[] xval,
double[] yval,
double[][] fval)
Compute an interpolating function for the dataset.
|
BivariateFunction |
BivariateGridInterpolator.interpolate(double[] xval,
double[] yval,
double[][] fval)
Compute an interpolating function for the dataset.
|
TricubicInterpolatingFunction |
TricubicInterpolator.interpolate(double[] xval,
double[] yval,
double[] zval,
double[][][] fval)
Compute an interpolating function for the dataset.
|
TrivariateFunction |
TrivariateGridInterpolator.interpolate(double[] xval,
double[] yval,
double[] zval,
double[][][] fval)
Compute an interpolating function for the dataset.
|
TricubicSplineInterpolatingFunction |
TricubicSplineInterpolator.interpolate(double[] xval,
double[] yval,
double[] zval,
double[][][] fval)
Deprecated.
Compute an interpolating function for the dataset.
|
double[] |
LoessInterpolator.smooth(double[] xval,
double[] yval)
Compute a loess fit on the data at the original abscissae.
|
double[] |
LoessInterpolator.smooth(double[] xval,
double[] yval,
double[] weights)
Compute a weighted loess fit on the data at the original abscissae.
|
| Constructor and Description |
|---|
BicubicInterpolatingFunction(double[] x,
double[] y,
double[][] f,
double[][] dFdX,
double[][] dFdY,
double[][] d2FdXdY) |
BicubicSplineInterpolatingFunction(double[] x,
double[] y,
double[][] f,
double[][] dFdX,
double[][] dFdY,
double[][] d2FdXdY)
Deprecated.
|
BicubicSplineInterpolatingFunction(double[] x,
double[] y,
double[][] f,
double[][] dFdX,
double[][] dFdY,
double[][] d2FdXdY,
boolean initializeDerivatives)
Deprecated.
|
PiecewiseBicubicSplineInterpolatingFunction(double[] x,
double[] y,
double[][] f) |
TricubicInterpolatingFunction(double[] x,
double[] y,
double[] z,
double[][][] f,
double[][][] dFdX,
double[][][] dFdY,
double[][][] dFdZ,
double[][][] d2FdXdY,
double[][][] d2FdXdZ,
double[][][] d2FdYdZ,
double[][][] d3FdXdYdZ) |
TricubicSplineInterpolatingFunction(double[] x,
double[] y,
double[] z,
double[][][] f,
double[][][] dFdX,
double[][][] dFdY,
double[][][] dFdZ,
double[][][] d2FdXdY,
double[][][] d2FdXdZ,
double[][][] d2FdYdZ,
double[][][] d3FdXdYdZ)
Deprecated.
|
| Modifier and Type | Method and Description |
|---|---|
static double |
PolynomialFunctionLagrangeForm.evaluate(double[] x,
double[] y,
double z)
Evaluate the Lagrange polynomial using
Neville's Algorithm.
|
static boolean |
PolynomialFunctionLagrangeForm.verifyInterpolationArray(double[] x,
double[] y,
boolean abort)
Check that the interpolation arrays are valid.
|
| Constructor and Description |
|---|
PolynomialFunctionLagrangeForm(double[] x,
double[] y)
Construct a Lagrange polynomial with the given abscissas and function
values.
|
PolynomialSplineFunction(double[] knots,
PolynomialFunction[] polynomials)
Construct a polynomial spline function with the given segment delimiters
and interpolating polynomials.
|
| Modifier and Type | Method and Description |
|---|---|
double[] |
RealTransformer.transform(UnivariateFunction f,
double min,
double max,
int n,
TransformType type)
Returns the (forward, inverse) transform of the specified real function,
sampled on the specified interval.
|
| Modifier and Type | Method and Description |
|---|---|
static void |
MathArrays.checkOrder(double[] val)
Check that the given array is sorted in strictly increasing order.
|
static void |
MathArrays.checkOrder(double[] val,
MathArrays.OrderDirection dir,
boolean strict)
Check that the given array is sorted.
|
static boolean |
MathArrays.checkOrder(double[] val,
MathArrays.OrderDirection dir,
boolean strict,
boolean abort)
Check that the given array is sorted.
|
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