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-rw-r--r--src/balpair.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/balpair.h b/src/balpair.h
index 62da0810..0178519f 100644
--- a/src/balpair.h
+++ b/src/balpair.h
@@ -30,12 +30,18 @@
*/
/**
+ * @defgroup numerics Core numerics
+ */
+
+/**
* @file balpair.h
* @author John Wiegley
* @date Sun May 20 19:11:58 2007
*
* @brief Provides an abstraction around balance_t for tracking costs.
*
+ * @ingroup numerics
+ *
* When a transaction's amount is added to a balance, only the "value"
* of the amount is added -- not the associated cost of the
* transaction. To provide for this, the balance_pair_t type allows