interpolation: renamed linear spline factory method

Signed-off-by: Christoph Ruegg <git@cdrnet.ch>

src/Managed.UnitTests/InterpolationTests/InterpolationTest.cs

@@ -40,7 +40,7 @@ namespace MathNet.Numerics.UnitTests.InterpolationTests
         [VerifyContract]
         public readonly IContract LinearSplineTests = new InterpolationContract<LinearSplineInterpolation>()
         {
-            Factory = Interpolation.CreateLinearSpline,
+            Factory = Interpolation.CreateLinearBetweenPoints,
             Order = new[] { 2, 3, 6 }
         };
 

src/Managed/Interpolation/Interpolation.cs

@@ -64,7 +64,7 @@ namespace MathNet.Numerics.Interpolation
         /// which can then be used to compute interpolations and extrapolations
         /// on arbitrary points.
         /// </returns>
-        public static IInterpolation CreateLinearSpline(
+        public static IInterpolation CreateLinearBetweenPoints(
             IList<double> points,
             IList<double> values)
         {