title: How to use sine, cosine, log function in android studio
body: <p>I made a simple calculator as my first android program, now I wanted to add <code>trigonometry</code>, <code>log</code>, etc functions to it.
  In <code>C</code> we have to include <code>math library</code> to do so, I can't seem to figure out how you do that in <code>java</code>, in <code>android studio</code>.
  Because  when I write <code>a=sin(b);</code> it doesn't recognize <code>sin</code>.
  So can someone tell me include keyword and library name to write which will include these functions.</p>