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-rw-r--r--Doc/Zsh/contrib.yo9
1 files changed, 7 insertions, 2 deletions
diff --git a/Doc/Zsh/contrib.yo b/Doc/Zsh/contrib.yo
index 7412f810d..620aaea3d 100644
--- a/Doc/Zsh/contrib.yo
+++ b/Doc/Zsh/contrib.yo
@@ -2371,7 +2371,7 @@ enditem()
See the comments in the function for a few extra tips.
)
findex(zmathfuncdef)
-item(tt(zmathfuncdef) var(mathfunc) [ var(body) ])(
+item(tt(zmathfuncdef) [ var(mathfunc) [ var(body) ] ])(
A convenient front end to tt(functions -M).
With two arguments, define a mathematical function named var(mathfunc)
@@ -2383,10 +2383,15 @@ to refer to optional parameters. Note that the forms must be
strictly adhered to for the function to calculate the correct number
of arguments. The implementation is held in a shell function named
tt(zsh_math_func_)var(mathfunc); usually the user will not need
-to refer to the shell function directly.
+to refer to the shell function directly. Any existing function
+of the same name is silently replaced.
With one argument, remove the mathematical function var(mathfunc)
as well as the shell function implementation.
+
+With no arguments, list all var(mathfunc) functions in a form
+suitable for restoring the definition.
+The functions have not necessarily been defined by tt(zmathfuncdef).
)
enditem()