bug fix

source/sample/transformer/T2TEmbedding.cpp

@@ -84,10 +84,10 @@ void T2TEmbedder::MakePosEmbedding(int eSize, int d, int length)
         int channelSize = eSize / 2;
         int offset = 0;
         for(int i = 0; i < channelSize; i++){
-            dp[offset++] = (float)sin(pos/pow(10000.0F, 2.0F*i/(d - 1)));
+            dp[offset++] = (float)sin(pos/pow(10000.0F, 2.0F*i/(d - 2)));
         }
         for(int i = 0; i < channelSize; i++){
-            dp[offset++] = (float)cos(pos/pow(10000.0F, 2.0F*i/(d - 1)));
+            dp[offset++] = (float)cos(pos/pow(10000.0F, 2.0F*i/(d - 2)));
         }
 
         /*