Looks nice! Minor issue with spacing in my browser: http://img202.imageshack.us/img202/6766/spacingissue.png
Source of the top equation is: J_\alpha(x) = \sum_{m=0}^\infty \frac{(-1)^m}{m! \, \Gamma(m + \alpha + 1)}{\left({\frac{x}{2}}\right)}^{2 m + \alpha}
Source of the bottom equation is:
<math display="block"> <mrow> <msup> <mi>c</mi> <mn>2</mn> </msup> <mo>=</mo> <msup> <mi>a</mi> <mn>2</mn> </msup> <mo>+</mo> <msup> <mi>b</mi> <mn>2</mn> </msup> <mo>−</mo><mn>2</mn><mi>a</mi><mi>b</mi> <mrow><mo>cos</mo><mi>θ</mi></mrow></mrow>
</math>