  <meta property="og:title" content="16 Matrices, Vectors, and Arrays | Stan User’s Guide" />
  <meta property="og:type" content="book" />

  <meta property="og:image" content="img/logo-tm.pdf" />
  <meta property="og:description" content="Stan user’s guide with examples and programming techniques." />


  <meta name="twitter:card" content="summary" />
  <meta name="twitter:title" content="16 Matrices, Vectors, and Arrays | Stan User’s Guide" />

  <meta name="twitter:description" content="Stan user�