Note corrected atan branch cut.

diff --git a/src/relnotes/bug-compsignedzero b/src/relnotes/bug-compsignedzero
index c71eb2c673fd8dd7b33634d532e88d17352877ed..0332c00fc73b31e430c02abb4b9baa04b7e8f700 100644 (file)
--- a/src/relnotes/bug-compsignedzero
+++ b/src/relnotes/bug-compsignedzero
@@ -1,5 +1,7 @@
-Bug fix: Several bugs were fixed involving signed zero in complex numbers:
+Bug fix: Several bugs were fixed involving signed zero and branch cuts
+in complex numbers:
 
 - -0.+i is now correctly parses as negative zero real part; previously
    the negative was discarded and it was parsed as positive zero.
 - -0.i is now correctly printed as such, not as `+-0.i'.
+- (atan -2i) now returns the same result as (atan 0.-2i), not (atan -0.-2i).