title: Matrix Multiplication in Apache Spark
body: <p>I am trying to perform matrix multiplication using Apache Spark and Java.</p>
  
  <p>I have 2 main questions:</p>
  
  <ol>
  <li>How to create RDD that can represent matrix in Apache Spark?  </li>
  <li>How to multiply two such RDDs?</li>
  </ol>