title: Double array in Python
body: <p>I have two "matrix" <code>[X] = [X1,X2,...,Xn]</code> and <code>[T](Xi) = [Ti1,Ti2,...,Tim]</code> with <code>Xi</code> and <code>Tij</code> are reals numbers. <code>Xi</code> describe the position of point X (one dimensional), <code>[T](Xi)</code> describe the velocity of <code>Xi</code>. </p>
  
  <p>I want to create a double array A in Python so: <code>A=A[Xi][Tj]</code>.</p>
  
  <p>By example: </p>
  
  <pre><code>A[0][i] = [T](X1) = T1j = [T11,T12,...,T1m]
  </code></pre>
  
  <p>and</p>
  
  <pre><code>A[1][i] = [T](X2) = T2j = [T21,T22,...,T2m]
  </code></pre>
  
  <p>I tried:</p>
  
  <pre><code>tableA = [X,T]
  </code></pre>
  
  <p>but that does not work well.</p>