ph-math/src/main/java/com/helger/numbercruncher/matrix/InvertibleMatrix.java
public float norm ()
  {
    float sum = 0;

    for (int r = 0; r < m_nRows; ++r)
    {
      for (int c = 0; c < m_nCols; ++c)
      {
        final float v = m_aValues[r][c];
        sum += v * v;
      }
    }

    return (float) Math.sqrt (sum);
  }
public float norm ()
  {
    float sum = 0;

    for (int r = 0; r < m_nRows; ++r)
    {
      for (int c = 0; c < m_nCols; ++c)
      {
        final float v = m_aValues[r][c];
        sum += v * v;
      }
    }

    return (float) Math.sqrt (sum);
  }
Compute the Euclidean norm of this matrix.

@return the norm