normalization of methods

lib/dynamics/ht_trendmode/HtTrendmode.Tests.cs

@@ -221,7 +221,7 @@ public class HtTrendmodeTests
             input[i] = 100.0 + Math.Sin(i * 0.15) * 8;
         }
 
-        HtTrendmode.Calculate(input.AsSpan(), output.AsSpan());
+        HtTrendmode.Batch(input.AsSpan(), output.AsSpan());
 
         // After warmup, all values should be 0 or 1
         for (int i = 40; i < output.Length; i++)
@@ -241,7 +241,7 @@ public class HtTrendmodeTests
             series.Add(DateTime.UtcNow.AddMinutes(i), 100.0 + Math.Sin(i * 0.25) * 12);
         }
 
-        var result = HtTrendmode.Calculate(series);
+        var result = HtTrendmode.Batch(series);
 
         Assert.Equal(100, result.Count);
     }

lib/dynamics/ht_trendmode/HtTrendmode.Validation.Tests.cs

@@ -102,7 +102,7 @@ public sealed class HtTrendmodeValidationTests : IDisposable
         }
 
         // Act - Batch
-        var batchResult = HtTrendmode.Calculate(series);
+        var batchResult = HtTrendmode.Batch(series);
 
         // Assert
         Assert.Equal(streamingResults.Count, batchResult.Count);

lib/dynamics/ht_trendmode/HtTrendmode.cs

@@ -587,7 +587,7 @@ public sealed class HtTrendmode : AbstractBase
         }
     }
 
-    public static void Calculate(ReadOnlySpan<double> source, Span<double> output)
+    public static void Batch(ReadOnlySpan<double> source, Span<double> output)
     {
         if (output.Length < source.Length)
         {
@@ -601,9 +601,16 @@ public sealed class HtTrendmode : AbstractBase
         }
     }
 
-    public static TSeries Calculate(TSeries source)
+    public static TSeries Batch(TSeries source)
     {
         var ht = new HtTrendmode();
         return ht.Update(source);
     }
+
+    public static (TSeries Results, HtTrendmode Indicator) Calculate(TSeries source)
+    {
+        var indicator = new HtTrendmode();
+        TSeries results = indicator.Update(source);
+        return (results, indicator);
+    }
 }