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Matrix transposition: Difference between revisions
Added an ActionScript version.
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{{task|Matrices}}Transpose an arbitrarily sized rectangular Matrix.
=={{header|ActionScript}}==
In ActionScript, multi-dimensional arrays are created by making an "Array of arrays" where each element is an array.
<lang ActionScript>
function transpose( m:Array):Array
{
//Assume each element in m is an array. (If this were production code, use typeof to be sure)
//Each element in m is a row, so this gets the length of a row in m,
//which is the same as the number of rows in m transpose.
var mTranspose = new Array(m[0].length);
for(var i:uint = 0; i < mTranspose.length; i++)
{
//create a row
mTranspose[i] = new Array(m.length);
//set the row to the appropriate values
for(var j:uint = 0; j < mTranspose[i].length; j++)
mTranspose[i][j] = m[j][i];
}
return mTranspose;
}
var m:Array = [[1, 2, 3, 10],
[4, 5, 6, 11],
[7, 8, 9, 12]];
var M:Array = transpose(m);
for(var i:uint = 0; i < M.length; i++)
trace(M[i]);</lang>
=={{header|Ada}}==
Transpose is a function of the standard Ada library provided for matrices built upon any floating-point or complex type. The relevant packages are Ada.Numerics.Generic_Real_Arrays and Ada.Numerics.Generic_Complex_Arrays, correspondingly.
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