confused for setup angularjs.Many dependency found : <p>I google for setup angularjs.I found many tutorial but i am confused.I found</p>

<ol>
<li>angular-seed  </li>
<li>Yeoman</li>
<li>bower</li>
<li>etc.</li>
</ol>

<p>it is necessary to use this dependency. 
there is any scratch for start angularjs.</p>
