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-rw-r--r--doc/r5rs/r5rs.texi2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/r5rs/r5rs.texi b/doc/r5rs/r5rs.texi
index 1c3df60da..b7722c1b6 100644
--- a/doc/r5rs/r5rs.texi
+++ b/doc/r5rs/r5rs.texi
@@ -4446,7 +4446,7 @@ With log defined this way, the values of sin^-1 z, cos^-1 z,
and tan^-1 z are according to the following formulae:
-@center sin^-1 z = -i log (i z + sqrt1 - z^2)
+@center sin^-1 z = -i log (i z + sqrt(1 - z^2))