Java BivariateFunction类代码示例

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本文整理汇总了Java中org.apache.commons.math3.analysis.BivariateFunction类的典型用法代码示例。如果您正苦于以下问题：Java BivariateFunction类的具体用法？Java BivariateFunction怎么用？Java BivariateFunction使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

BivariateFunction类属于org.apache.commons.math3.analysis包，在下文中一共展示了BivariateFunction类的14个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: computePartialDerivatives

import org.apache.commons.math3.analysis.BivariateFunction; //导入依赖的package包/类
/**
 * Compute all partial derivatives.
 */
private void computePartialDerivatives() {
    final int lastI = xval.length - 1;
    final int lastJ = yval.length - 1;
    partialDerivatives = new BivariateFunction[5][lastI][lastJ];

    for (int i = 0; i < lastI; i++) {
        for (int j = 0; j < lastJ; j++) {
            final BicubicSplineFunction f = splines[i][j];
            partialDerivatives[0][i][j] = f.partialDerivativeX();
            partialDerivatives[1][i][j] = f.partialDerivativeY();
            partialDerivatives[2][i][j] = f.partialDerivativeXX();
            partialDerivatives[3][i][j] = f.partialDerivativeYY();
            partialDerivatives[4][i][j] = f.partialDerivativeXY();
        }
    }
}

开发者ID:SpoonLabs，项目名称:astor，代码行数:20，代码来源:BicubicSplineInterpolatingFunction.java

示例2: testPlane

import org.apache.commons.math3.analysis.BivariateFunction; //导入依赖的package包/类
/**
 * Interpolating a plane.
 * <p>
 * z = 2 x - 3 y + 5
 */
@Test
public void testPlane() {
    final int numberOfElements = 10;
    final double minimumX = -10;
    final double maximumX = 10;
    final double minimumY = -10;
    final double maximumY = 10;
    final int numberOfSamples = 100;

    final double interpolationTolerance = 7e-15;
    final double maxTolerance = 6e-14;

    // Function values
    BivariateFunction f = new BivariateFunction() {
            public double value(double x, double y) {
                return 2 * x - 3 * y + 5;
            }
        };

    testInterpolation(minimumX,
                      maximumX,
                      minimumY,
                      maximumY,
                      numberOfElements,
                      numberOfSamples,
                      f,
                      interpolationTolerance,
                      maxTolerance);
}

开发者ID:Quanticol，项目名称:CARMA，代码行数:35，代码来源:PiecewiseBicubicSplineInterpolatingFunctionTest.java

示例3: testParabaloid

import org.apache.commons.math3.analysis.BivariateFunction; //导入依赖的package包/类
/**
 * Interpolating a paraboloid.
 * <p>
 * z = 2 x<sup>2</sup> - 3 y<sup>2</sup> + 4 x y - 5
 */
@Test
public void testParabaloid() {
    final int numberOfElements = 10;
    final double minimumX = -10;
    final double maximumX = 10;
    final double minimumY = -10;
    final double maximumY = 10;
    final int numberOfSamples = 100;

    final double interpolationTolerance = 2e-14;
    final double maxTolerance = 6e-14;

    // Function values
    BivariateFunction f = new BivariateFunction() {
            public double value(double x, double y) {
                return 2 * x * x - 3 * y * y + 4 * x * y - 5;
            }
        };

    testInterpolation(minimumX,
                      maximumX,
                      minimumY,
                      maximumY,
                      numberOfElements,
                      numberOfSamples,
                      f,
                      interpolationTolerance,
                      maxTolerance);
}

开发者ID:Quanticol，项目名称:CARMA，代码行数:35，代码来源:PiecewiseBicubicSplineInterpolatingFunctionTest.java

示例4: testPlane

import org.apache.commons.math3.analysis.BivariateFunction; //导入依赖的package包/类
/**
 * Interpolating a plane.
 * <p>
 * z = 2 x - 3 y + 5
 */
@Test
public void testPlane() {
    BivariateFunction f = new BivariateFunction() {
            public double value(double x, double y) {
                return 2 * x - 3 * y + 5;
            }
        };

    testInterpolation(3000,
                      1e-13,
                      f,
                      false);
}

开发者ID:Quanticol，项目名称:CARMA，代码行数:19，代码来源:BicubicInterpolatorTest.java

示例5: testParaboloid

import org.apache.commons.math3.analysis.BivariateFunction; //导入依赖的package包/类
/**
 * Interpolating a paraboloid.
 * <p>
 * z = 2 x<sup>2</sup> - 3 y<sup>2</sup> + 4 x y - 5
 */
@Test
public void testParaboloid() {
    BivariateFunction f = new BivariateFunction() {
            public double value(double x, double y) {
                return 2 * x * x - 3 * y * y + 4 * x * y - 5;
            }
        };

    testInterpolation(3000,
                      1e-12,
                      f,
                      false);
}

开发者ID:Quanticol，项目名称:CARMA，代码行数:19，代码来源:BicubicInterpolatorTest.java

示例6: getBiInterpFunc

import org.apache.commons.math3.analysis.BivariateFunction; //导入依赖的package包/类
/**
 * Make interpolation function for grid data
 * @param x X data
 * @param y Y data
 * @param z Z data
 * @return Interpolation function
 */
public static BivariateFunction getBiInterpFunc(Array x, Array y, Array z) {
    double[] xd = (double[]) ArrayUtil.copyToNDJavaArray(x);
    double[] yd = (double[]) ArrayUtil.copyToNDJavaArray(y);
    double[][] zd = (double[][]) ArrayUtil.copyToNDJavaArray(z);
    BivariateGridInterpolator li = new BicubicInterpolator();
    BivariateFunction func = li.interpolate(xd, yd, zd);

    return func;
}

开发者ID:meteoinfo，项目名称:MeteoInfoLib，代码行数:17，代码来源:InterpUtil.java

示例7: evaluate

import org.apache.commons.math3.analysis.BivariateFunction; //导入依赖的package包/类
/**
 * Compute the value of the function
 * @param func The function
 * @param x Input x data
 * @param y Input y data
 * @return Function value
 */
public static Array evaluate(BivariateFunction func, Array x, Array y) {
    Array r = Array.factory(DataType.DOUBLE, x.getShape());
    for (int i = 0; i < r.getSize(); i++)
        r.setDouble(i, func.value(x.getDouble(i), y.getDouble(i)));
    
    return r;
}

开发者ID:meteoinfo，项目名称:MeteoInfoLib，代码行数:15，代码来源:InterpUtil.java