--- a/artifacts/src/main/java/org/dive4elements/river/utils/Formatter.java	Mon Jun 03 16:26:10 2013 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/utils/Formatter.java	Mon Jun 03 17:15:09 2013 +0200
@@ -11,6 +11,7 @@
 import java.text.DateFormat;
 import java.text.NumberFormat;
 import java.text.SimpleDateFormat;
+import java.text.DecimalFormat;
 import java.util.Locale;
 
 import org.dive4elements.artifacts.CallContext;
@@ -87,6 +88,12 @@
     public static final int FIX_DELTA_W_DELTA_Q_MIN_DIGITS  = 0;
     public static final int FIX_DELTA_W_DELTA_Q_MAX_DIGITS  = 2;
 
+    public static final int VARIANCE_MIN_DIGITS = 0;
+    public static final int VARIANCE_MAX_DIGITS = 4;
+
+    // SQ Relation
+    public static final int SQ_RELATION_MAX_DIGITS = 8;
+    public static final int SQ_RELATION_MIN_DIGITS = 0;
 
     /**
      * Creates a localized NumberFormatter with given range of decimal digits.
@@ -106,7 +113,6 @@
         return nf;
     }
 
-
     public static NumberFormat getFormatter(CallContext c, int min, int max){
         return getFormatter(c.getMeta(), min, max);
     }
@@ -124,6 +130,32 @@
         return NumberFormat.getInstance(locale);
     }
 
+    /**
+     * Returns a formatter in engineering notation
+     */
+    public static NumberFormat getEngFormatter(CallContext c) {
+        NumberFormat nf = getRawFormatter(c);
+        if (nf instanceof DecimalFormat) {
+            DecimalFormat df = (DecimalFormat)nf;
+            df.applyPattern("##0.#####E0");
+        }
+        return nf;
+    }
+
+    /**
+     * Returns a number formatter that uses an exponent after max digits
+     */
+    public static NumberFormat getScientificFormater(CallContext c, int min, int max) {
+        NumberFormat nf = getRawFormatter(c);
+        if (nf instanceof DecimalFormat) {
+            DecimalFormat df = (DecimalFormat)nf;
+            df.applyPattern("0.0E0");
+            df.setMaximumFractionDigits(max);
+            df.setMinimumFractionDigits(min);
+        }
+        return nf;
+    }
+
 
     /**
      * Returns a date formatter with SHORT style.
@@ -398,6 +430,21 @@
                 FIX_DELTA_W_DELTA_W_MAX_DIGITS);
     }
 
+    public static NumberFormat getVariance(CallContext context) {
+        return getFormatter(
+                context,
+                VARIANCE_MIN_DIGITS,
+                VARIANCE_MAX_DIGITS);
+    }
+
+    public static NumberFormat getSQRelation(CallContext context) {
+        // Would be nice if E0 would not be shown
+        return getScientificFormater(
+                context,
+                SQ_RELATION_MIN_DIGITS,
+                SQ_RELATION_MAX_DIGITS);
+    }
+
     public static NumberFormat getMeterFormat(CallContext context) {
         return getFormatter(
                 context,