title: Sparse Matrix implemantation and operations in java
body: <p>I have to implement sparse matrix and do some decompositions like Cholesky Decomposition, LU Decomposition, QR Decomposition on it. </p>
  
  <p>Actually I found a library called JAMA which is capable of doing this for dense matrix.</p>
  
  <p>But I have to implement sparse matrix.</p>
  
  <p>Can any one share their experience implementing sparse matrix or is there any library to implement it.</p>