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attack68 · Dec 6, 2024 · a1de6af · a1de6af
1 parent 8fa7383
commit a1de6af
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/python/rateslib/fx/fx_forwards.py b/python/rateslib/fx/fx_forwards.py
@@ -500,7 +500,7 @@ def rate(
 
         Returns
         -------
-        float, Dual, Dual2 or tuple
+        float, Dual, Dual2
 
         Notes
         -----
@@ -513,8 +513,8 @@ def rate(
         where :math:`v` is a local currency discount curve and :math:`w` is a discount
         curve collateralised with an alternate currency.
 
-        Where curves do not exist in the relevant currencies we chain rates available
-        given the available curves.
+        If required curves do not exist in the relevant currencies then forwards rates are chained
+        using those calculable from available curves. The chain is found using a search algorithm.
 
         .. math::