public static String realMatToString(RealMatrix r) {
String res =
"RealMatrix("
+ r.getRowDimension()
+ "x"
+ r.getColumnDimension()
+ ") of type '"
+ r.getClass().getName()
+ "'\n";
for (int i = 0; i < r.getRowDimension(); i++) {
res += Arrays.toString(r.getRow(i)) + "\n";
}
return res;
}
