Interpolation with test done

StructureHelperCommon/Services/MathUtils.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperCommon.Services
+{
+    public static class MathUtils
+    {
+        public static double Interpolation(double x, double x1, double x2, double y1, double y2)
+        {
+            if (Math.Abs(x2 - x1) < 10E-3)
+            {
+                return (y1 + y2) / 2;
+            }
+            var y = (y2 - y1) * (x - x1) / (x2 - x1) + y1;
+            return y;
+        }
+    }
+}