Started with perl6 shortly.. perl5 has AoA ... wanted to know if something can be done in perl6...
It seems that it can be done using perl6 : 

C:\WINDOWS\system32>perl6 -v
This is Rakudo Star version 2018.01 built on MoarVM version 2018.01
implementing Perl 6.c.

[download]

So here is the code which works under windows10 

use v6;

my  @arr  = [
    [ 1.1,2.2,3.3,4.4,5.5 ],
    [ 10,20,30,40,50 ],
    [ 100,200,300,400,500 ],
    [ 1000,2000,3000,4000,5000 ],
];

dd @arr; # dump the matrix

loop ( my $row=0; $row <= @arr.end; $row++)  {
    #say "Idx : $row";
    loop (my $col=0 ; $col <= @arr[$row].end ; $col++ ) {
        print "@arr[$row][$col].fmt("%7.1f")\t";
    }
  print "\n";
}

my $aant_cols = ( @arr[0].end ) ;  # It's a matrix : so Just take one 
+row to find out the number of columns
                                   # cannot use @arr[0].elems : gives 
+an error
print  "=======\t" x $aant_cols + 1 , "\n";
loop ( my $col=0 ; $col <= $aant_cols  ; $col++ ) {
 printf "%7.1f" , [+] @arr[*;$col]   ;  # calculate the total for each
+ column
 print "\t"
}
say "";

[download]

The above creates the following result

Array @arr = [1.1, 2.2, 3.3, 4.4, 5.5, 10, 20, 30, 40, 50, 100, 200, 300, 400, 500, 1000, 2000, 3000, 4000, 5000]
    1.1     2.2     3.3     4.4     5.5
   10.0    20.0    30.0    40.0    50.0
  100.0   200.0   300.0   400.0   500.0
 1000.0  2000.0  3000.0  4000.0  5000.0
======= ======= ======= ======= =======
 1111.1  2222.2  3333.3  4444.4  5555.5

Please notice : All columns are totalled ( =sum in excel ) .

Could not find any usefull examples in the perl6 documentation. So I learned it myself.
Hope it's of use for sombody else

Have fun with perl6

In reply to perl6 matrix arrayof arrays by teun-arno

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