Lines Matching refs:xval
37 public BicubicSplineInterpolatingFunction interpolate(final double[] xval,
41 if (xval.length == 0 || yval.length == 0 || fval.length == 0) {
44 if (xval.length != fval.length) {
45 throw new DimensionMismatchException(xval.length, fval.length);
48 MathUtils.checkOrder(xval);
51 final int xLen = xval.length;
55 // 0 <= i < xval.length
57 // fX[j][i] = f(xval[i], yval[j])
75 ySplineX[j] = spInterpolator.interpolate(xval, fX[j]);
90 dFdX[i][j] = f.value(xval[i]);
113 ((xval[nI] - xval[pI]) * (yval[nJ] - yval[pJ]));
118 return new BicubicSplineInterpolatingFunction(xval, yval, fval,
