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-rw-r--r--libcrystfel/src/utils.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libcrystfel/src/utils.c b/libcrystfel/src/utils.c
index 0972c710..e09b53c3 100644
--- a/libcrystfel/src/utils.c
+++ b/libcrystfel/src/utils.c
@@ -283,6 +283,7 @@ struct quaternion normalise_quaternion(struct quaternion q)
/**
* random_quaternion:
+ * @rng: A GSL random number generator to use
*
* Returns: a randomly generated, normalised, quaternion.
**/
@@ -328,7 +329,7 @@ int quaternion_valid(struct quaternion q)
/**
* quat_rot
- * @q: A vector (in the form of an %rvec)
+ * @q: A vector (in the form of a "struct rvec")
* @z: A %quaternion
*
* Rotates a vector according to a quaternion.