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-rw-r--r--lib/libm/common_source/acos.32
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/libm/common_source/acos.3 b/lib/libm/common_source/acos.3
index a3e5e7a..75f2936 100644
--- a/lib/libm/common_source/acos.3
+++ b/lib/libm/common_source/acos.3
@@ -38,6 +38,8 @@
.Sh NAME
.Nm acos
.Nd arc cosine function
+.Sh LIBRARY
+.Lb libm
.Sh SYNOPSIS
.Fd #include <math.h>
.Ft double
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