Editing Array slicing (section)

===1970s: [[MATLAB]] ===
<syntaxhighlight lang="matlabsession">
>> A = round(rand(3, 4, 5)*10) % 3x4x5 three-dimensional or cubic array
>> A(:, :, 3) % 3x4 two-dimensional array along first and second dimensions

ans =

  8  3  5  7
  8  9  1  4
  4  4  2  5

>> A(:, 2:3, 3) % 3x2 two-dimensional array along first and second dimensions

ans =

  3 5
  9 1
  4 2

>> A(2:end, :, 3) % 2x4 two-dimensional array using the 'end' keyword; works with GNU Octave 3.2.4

ans =

   6    1    4    6
  10    1    3    1

>> A(1, :, 3) % single-dimension array along second dimension

ans =

  8  3  5  7

>> A(1, 2, 3) % single value
ans = 3
</syntaxhighlight>

The <code>:</code> operator implements the stride syntax (<code>lower_bound:upper_bound[:stride]</code>) by generating a vector. <code>1:5</code> evaluates as <code>[1, 2, 3, 4, 5]</code>. <code>1:9:2</code> evaluates as <code>[1, 3, 5, 7, 9]</code>. A bare <code>:</code> evaluates the same as <code>1:end</code>, with <code>end</code> determined by context.