[texhax] font size in display

[Zbigniew Nitecki]

When, using amsmath I have the following source code:
************************************************************************ 
*********
\begin{eqnarray*}
     \frac{1}{2}\int_{0}^{2\pi/3}\sin\theta\ d\theta
     & =\frac{1}{2} \left(-\cos\theta\right)
     & =-\frac{1}{2}\cos\frac{2\pi}{3}+\frac{1}{2}\cos0  \\
      & =-\frac{1}{2} \left(-\frac{1}{2} \right)+\frac{1}{2} \left(1 
\right) & =\frac{1}{4}.
\end{eqnarray*}
************************************************************************ 
*********
the various fractions come out different sizes: in the first, third,  
and last group
they come out in what appears to be displaystyle, but in the second  
and next-to-last group
they come out markedly smaller.  What is going on?

Zbigniew Nitecki
Department of Mathematics
Tufts University
Medford, MA 02155

telephones:
Office    (617)627-3843
Dept.    (617)627-3234
Dept. fax    (617)627-3966


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