normalization of methods

lib/cycles/cg/Cg.Tests.cs

@@ -425,7 +425,7 @@ public class CgTests
         var batchResult = batchIndicator.Update(tSeries);
 
         // Mode 3: Static Calculate
-        var staticResult = Cg.Calculate(tSeries, period);
+        var staticResult = Cg.Batch(tSeries, period);
 
         // Mode 4: Span-based Batch
         double[] sourceArray = new double[dataLen];

lib/cycles/cg/Cg.Validation.Tests.cs

@@ -219,7 +219,7 @@ public class CgValidationTests
             tSeries.Add(new TValue(bar.Time, bar.Close));
         }
 
-        var batch = Cg.Calculate(tSeries, period);
+        var batch = Cg.Batch(tSeries, period);
 
         // Compare last values
         Assert.Equal(batch[^1].Value, streaming.Last.Value, Tolerance);
@@ -241,7 +241,7 @@ public class CgValidationTests
             tSeries.Add(new TValue(bar.Time, bar.Close));
         }
 
-        var tSeriesResult = Cg.Calculate(tSeries, period);
+        var tSeriesResult = Cg.Batch(tSeries, period);
 
         // Span approach
         double[] source = new double[dataLen];

lib/cycles/cg/Cg.cs

@@ -213,7 +213,7 @@ public sealed class Cg : AbstractBase
     /// <summary>
     /// Calculates CG for a time series.
     /// </summary>
-    public static TSeries Calculate(TSeries source, int period = 10)
+    public static TSeries Batch(TSeries source, int period = 10)
     {
         var cg = new Cg(period);
         return cg.Update(source);
@@ -244,6 +244,13 @@ public sealed class Cg : AbstractBase
         CalculateScalarCore(source, output, period);
     }
 
+    public static (TSeries Results, Cg Indicator) Calculate(TSeries source, int period = 10)
+    {
+        var indicator = new Cg(period);
+        TSeries results = indicator.Update(source);
+        return (results, indicator);
+    }
+
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     private static void CalculateScalarCore(ReadOnlySpan<double> source, Span<double> output, int period)
     {