title: Unusual Math with incorrect results?
body: <p>My python interpreter is acting funky when I use the math.cos() and math.sin() function. For example, if I do this on my calculator:</p>
  
  <pre><code>cos(35)*15+9 = 21.28728066
  sin(35)*15+9 = 17.60364655
  </code></pre>
  
  <p>But when I do this on python (both 3.2 and 2.7)</p>
  
  <pre><code>&gt;&gt;&gt; import math
  &gt;&gt;&gt; math.cos(35)*15+9
  -4.5553830763726015
  
  &gt;&gt;&gt; import math
  &gt;&gt;&gt; math.sin(35)*15+9
  2.577259957557734
  </code></pre>
  
  <p>Why does this happen?</p>
  
  <p>EDIT: How do you change the Radian in Python to degrees, just in case?</p>