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MatchLocalNames

MatchLocalNames
is an option for Trace and related functions which specifies whether symbols such as x should match symbols with local names of the form x$nnn.

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The default setting is MatchLocalNames->True.

With the default setting, Trace[expr, x=rhs] will show assignments to local variables whose names are of the form x$nnn.

Trace[expr, x=rhs, MatchLocalNames->False] shows assignments only for the global symbol x.

EXAMPLES

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Basic Examples (1)

By default, Trace will match local variables:

In[1]:=

In[2]:=

Out[2]=

With MatchLocalNames → False, only an explicit match of x will show up:

In[3]:=

Out[3]=

TUTORIALS

Tracing Evaluation

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