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commit 9946ec4e22a436adc1c2124c11109c8ffbd1a601 Author: Gilles Sadowski <gillese...@gmail.com> AuthorDate: Wed Jul 27 15:49:14 2022 +0200 Use MathJax. --- .../BicubicInterpolatingFunctionTest.java | 28 ++++++++++++---------- 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/interpolation/BicubicInterpolatingFunctionTest.java b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/interpolation/BicubicInterpolatingFunctionTest.java index 6a17b44d9..e87a28aec 100644 --- a/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/interpolation/BicubicInterpolatingFunctionTest.java +++ b/commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/analysis/interpolation/BicubicInterpolatingFunctionTest.java @@ -174,8 +174,9 @@ public final class BicubicInterpolatingFunctionTest { /** * Interpolating a plane. - * <p> - * z = 2 x - 3 y + 5 + * \[ + * z = 2 x - 3 y + 5 + * \] */ @Test public void testPlane() { @@ -232,8 +233,9 @@ public final class BicubicInterpolatingFunctionTest { /** * Interpolating a paraboloid. - * <p> - * z = 2 x<sup>2</sup> - 3 y<sup>2</sup> + 4 x y - 5 + * \[ + * z = 2 x^2 - 3 y^2 + 4 x y - 5 + * \] */ @Test public void testParaboloid() { @@ -287,11 +289,12 @@ public final class BicubicInterpolatingFunctionTest { maxTolerance, false); } - + /** * Test for partial derivatives of {@link BicubicFunction}. - * <p> - * f(x, y) = Σ<sub>i</sub>Σ<sub>j</sub> (i+1) (j+2) x<sup>i</sup> y<sup>j</sup> + * \[ + * f(x, y) = \Sigma_i \Sigma_j (i+1) (j+2) x^i y^j + * \] */ @Test public void testSplinePartialDerivatives() { @@ -371,11 +374,12 @@ public final class BicubicInterpolatingFunctionTest { /** * Test that the partial derivatives computed from a * {@link BicubicInterpolatingFunction} match the input data. - * <p> - * f(x, y) = 5 - * - 3 x + 2 y - * - x y + 2 x<sup>2</sup> - 3 y<sup>2</sup> - * + 4 x<sup>2</sup> y - x y<sup>2</sup> - 3 x<sup>3</sup> + y<sup>3</sup> + * \[ + * f(x, y) = 5 + * - 3 x + 2 y + * - x y + 2 x^2 - 3 y^2 + * + 4 x^2 y - x y^2 - 3 x^3 + y^3 + * \] */ @Test public void testMatchingPartialDerivatives() {