Mon, 03 Aug 2009 17:23:54 +0100
1st version with printing support. Now uses Libgd for image generation functionality.
| philpem@5 | 1 | \form#0:$ v = 1/N \sum\limits_{k=1}^{N} (x_k - \bar x)^2 = 1/N \left( \sum\limits_{k=1}^N x_k^2 - \left( \sum\limits_{k=1}^N x_k \right)^2 / N \right) $ |
| philpem@5 | 2 | \form#1:$ \bar x = 1/N \sum\limits_{k=1}^N x_k $ |
| philpem@5 | 3 | \form#2:$ v = \frac{1}{N-1} \sum\limits_{k=1}^{N} (x_k - \bar x)^2 $ |