docs: public static DMatrixRMaj insideSpan(DMatrixRMaj[] span , double min , double max , Random rand ) {
          DMatrixRMaj A = new DMatrixRMaj(span.length,1);
  
          DMatrixRMaj B = new DMatrixRMaj(span[0].getNumElements(),1);
  
          for( int i = 0; i < span.length; i++ ) {
              B.set(span[i]);
              double val = rand.nextDouble()*(max-min)+min;
              CommonOps_DDRM.scale(val,B);
  
              CommonOps_DDRM.add(A,B,A);
  
          }
  
          return A;
      }