small enhancement in ph.toUnit

inc_pluginfunctions

@@ -330,7 +330,7 @@ function ph.toUnit(){
     test $_digits -gt 0 && _dots=$( yes "." 2>/dev/null | head -$_digits | tr -d "\n" )
     test $_digits -gt 0 && _bc+=" -l | grep -o '.*\\.${_dots}'"
 
-    echo "$(echo "$_value" | tr -d "[:alpha:]" )*${_multiply}/$_divisor" | eval "$_bc" | sed "s#^\.#0.#"
+    echo "$(echo "$_value" | tr -d "[:alpha:]" )*( ${_multiply}/$_divisor )" | eval "$_bc" | sed "s#^\.#0.#"
     
 }