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-rw-r--r--Doc/Zsh/arith.yo3
1 files changed, 2 insertions, 1 deletions
diff --git a/Doc/Zsh/arith.yo b/Doc/Zsh/arith.yo
index 96dc2dc68..a620b73d1 100644
--- a/Doc/Zsh/arith.yo
+++ b/Doc/Zsh/arith.yo
@@ -39,7 +39,8 @@ zero status.
 cindex(arithmetic base)
 cindex(bases, in arithmetic)
 Integers can be in bases other than 10.
-A leading `tt(0x)' or `tt(0X)' denotes hexadecimal.
+A leading `tt(0x)' or `tt(0X)' denotes hexadecimal and a leading
+`tt(0b)' or `tt(0B) binary.
 Integers may also be of the form `var(base)tt(#)var(n)',
 where var(base) is a decimal number between two and thirty-six
 representing the arithmetic base and var(n)