diff --git a/Code-C/main b/Code-C/main
index 6d59e32..3cd197e 100755
Binary files a/Code-C/main and b/Code-C/main differ
diff --git a/Code-C/main.c b/Code-C/main.c
index 1a42c18..32e7fd7 100644
--- a/Code-C/main.c
+++ b/Code-C/main.c
@@ -9,7 +9,7 @@
 #include "getArray.h"
 
 bool rawDataWriteFlag;
-int nRow = 4;
+int nRow = 500;
 int nCol = 1;
 double freqEch = 250;
 
diff --git a/Code-C/power.c b/Code-C/power.c
index d4714c3..6fd69d1 100644
--- a/Code-C/power.c
+++ b/Code-C/power.c
@@ -11,15 +11,14 @@
  * @param powerArray array where results are stocked
  */
 void powerCalculation(long **p, double powerArray[]){
-    printArrayData(p,nRow,nCol);
     printf("data in pw : \n");
-    for(int i = 1; i < nCol; i++){
+    for(int i = 0; i < nCol; i++){
         int j = 0;
         powerArray[i] = 0;
 
         while(j < nRow){
-            printf("%d , %d , %d , %d\n" , p[j][i] ,powerArray[i] ,  i  ,j);
-            powerArray[i] + pow(p[j][i],2);
+            printf("\np[%d,%d] = %d\npwArray[%d] = %lf\n" , j,i,p[j][i+1],i,powerArray[i]);
+            powerArray[i] += pow(p[j][i+1],2);
             j++;
         }
         powerArray[i] /= nRow;