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Diffstat (limited to 'doc/rounding-errors.doc')
| -rw-r--r-- | doc/rounding-errors.doc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/rounding-errors.doc b/doc/rounding-errors.doc index 433d6ed9..133a1fe5 100644 --- a/doc/rounding-errors.doc +++ b/doc/rounding-errors.doc @@ -15,10 +15,10 @@ implementation would result in something, for which because of rounding errors, due to the integer division. This can be avoided by transforming the formula into -\f[y_i = {(\sum_{j=0}^{j=i} x_j) a \over b} - \sum_{j=0}^{j=i} y_j\f] +\f[y_i = {(\sum_{j=0}^{j=i} x_j) a \over b} - \sum_{j=0}^{j=i-1} y_j\f] Of corse, when all \f$y_i\f$ are calculated in a sequence, -\f$\sum_{j=0}^{j=i} x_j\f$ and \f$\sum_{j=0}^{j=i} y_j\f$ can be +\f$\sum_{j=0}^{j=i} x_j\f$ and \f$\sum_{j=0}^{j=i-1} y_j\f$ can be accumulated in the same loop. */
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