Matrix transposition

Matrix transposition
You are encouraged to solve this task according to the task description, using any language you may know.

Transpose an arbitrarily sized rectangular Matrix.

ALGOL 68

main:(

  [,]REAL m=((1,  1,  1,   1),
             (2,  4,  8,  16),
             (3,  9, 27,  81),
             (4, 16, 64, 256),
             (5, 25,125, 625));

  OP ZIP = ([,]REAL in)[,]REAL:(
    [2 LWB in:2 UPB in,1 LWB in:1UPB in]REAL out;
    FOR i FROM LWB in TO UPB in DO
       out[,i]:=in[i,] 
    OD;
    out
  );

  PROC pprint = ([,]REAL m)VOID:(
    FORMAT real fmt = $g(-6,2)$; # width of 6, with no '+' sign, 2 decimals #
     FORMAT vec fmt = $"("n(2 UPB m-1)(f(real fmt)",")f(real fmt)")"$;
    FORMAT matrix fmt = $x"("n(UPB m-1)(f(vec fmt)","lxx)f(vec fmt)");"$;
    # finally print the result #
    printf((matrix fmt,m))
  );

  printf(($x"Transpose:"l$));
  pprint((ZIP m))
)

Output:

Transpose:
((  1.00,  2.00,  3.00,  4.00,  5.00),
 (  1.00,  4.00,  9.00, 16.00, 25.00),
 (  1.00,  8.00, 27.00, 64.00,125.00),
 (  1.00, 16.00, 81.00,256.00,625.00));

BASIC

Compiler: QuickBasic 4.5

CLS
DIM m(1 TO 5, 1 TO 4) 'any dimensions you want

'set up the values in the array
FOR rows = LBOUND(m, 1) TO UBOUND(m, 1) 'LBOUND and UBOUND can take a dimension as their second argument
       FOR cols = LBOUND(m, 2) TO UBOUND(m, 2)
       m(rows, cols) = rows ^ cols 'any formula you want
       NEXT cols
NEXT rows

'declare the new matrix
DIM trans(LBOUND(m, 2) TO UBOUND(m, 2), LBOUND(m, 1) TO UBOUND(m, 1))

'copy the values
FOR rows = LBOUND(m, 1) TO UBOUND(m, 1)
       FOR cols = LBOUND(m, 2) TO UBOUND(m, 2)
       trans(cols, rows) = m(rows, cols)
       NEXT cols
NEXT rows

'print the new matrix
FOR rows = LBOUND(trans, 1) TO UBOUND(trans, 1)
       FOR cols = LBOUND(trans, 2) TO UBOUND(trans, 2)
       PRINT trans(rows, cols);
       NEXT cols
PRINT
NEXT rows

IDL

Standard IDL function transpose()

m=[[1,1,1,1],[2, 4, 8, 16],[3, 9,27, 81],[5, 25,125, 625]]
print,transpose(m)

Java

import java.util.Arrays;
public class Transpose{
	public static void main(String[] args){
		double[][] m = {{1, 1, 1, 1},
				{2, 4, 8, 16},
				{3, 9, 27, 81},
				{4, 16, 64, 256},
				{5, 25, 125, 625}};
		double[][] ans = new double[m[0].length][m.length];
		for(int rows = 0; rows < m.length; rows++){
			for(int cols = 0; cols < m[0].length; cols++){
				ans[cols][rows] = m[rows][cols];
			}
		}
		for(double[] i:ans){//2D arrays are arrays of arrays
			System.out.println(Arrays.toString(i));
		}
	}
}

Perl

Library
This is an example of a library. You may see a list of other libraries used on Rosetta Code at Category:Solutions by Library.

use Math::Matrix;

$m = Math::Matrix->new(
  [1, 1, 1, 1],
  [2, 4, 6, 8],
  [3, 9, 27, 81],
  [4, 16, 64, 256],
  [5, 25, 125, 625],
);

$m->transpose->print;

Output:

1.00000    2.00000    3.00000    4.00000    5.00000 
1.00000    4.00000    9.00000   16.00000   25.00000 
1.00000    6.00000   27.00000   64.00000  125.00000 
1.00000    8.00000   81.00000  256.00000  625.00000

Python

#!/usr/bin/env python
from pprint import pprint
m=((1,  1,  1,   1),
   (2,  4,  8,  16),
   (3,  9, 27,  81),
   (4, 16, 64, 256),
   (5, 25,125, 625));
pprint(zip(*m))

Output:

[(1, 2, 3, 4, 5),
 (1, 4, 9, 16, 25),
 (1, 8, 27, 64, 125),
 (1, 16, 81, 256, 625)]