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ExcludedForms

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is an option that gives a list of patterns for expressions that should be excluded from an operation performed by a particular function.

Details

  • Different functions use different default settings for ExcludedForms.
  • In functions such as Simplify and FullSimplify, ExcludedForms specifies classes of expressions that should not be touched if they are encountered at intermediate stages in a computation.
  • In functions such as TakeLargest and TakeSmallest, ExcludedForms specifies classes of expressions that should be considered in selecting elements to return.

Examples

Basic Examples  (2)Summary of the most common use cases

This gives no simplification:

In[1]:=1
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https://wolfram.com/xid/0dqvmfyiimw-cb444f
Out[1]=1

Excluding transformations of (x-2)^10 allows you to expand the remaining terms:

In[2]:=2
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https://wolfram.com/xid/0dqvmfyiimw-dmwsfp
Out[2]=2

This gives a result in terms of Arg[x]:

In[1]:=1
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https://wolfram.com/xid/0dqvmfyiimw-cz9t78
Out[1]=1

This specifies that Log[x] should not be transformed:

In[2]:=2
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https://wolfram.com/xid/0dqvmfyiimw-o5gux6
Out[2]=2
Wolfram Research (1996), ExcludedForms, Wolfram Language function, https://reference.wolfram.com/language/ref/ExcludedForms.html.
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Wolfram Research (1996), ExcludedForms, Wolfram Language function, https://reference.wolfram.com/language/ref/ExcludedForms.html.

Text

Wolfram Research (1996), ExcludedForms, Wolfram Language function, https://reference.wolfram.com/language/ref/ExcludedForms.html.

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Wolfram Research (1996), ExcludedForms, Wolfram Language function, https://reference.wolfram.com/language/ref/ExcludedForms.html.

CMS

Wolfram Language. 1996. "ExcludedForms." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/ExcludedForms.html.

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Wolfram Language. 1996. "ExcludedForms." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/ExcludedForms.html.

APA

Wolfram Language. (1996). ExcludedForms. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ExcludedForms.html

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Wolfram Language. (1996). ExcludedForms. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ExcludedForms.html

BibTeX

@misc{reference.wolfram_2025_excludedforms, author="Wolfram Research", title="{ExcludedForms}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/ExcludedForms.html}", note=[Accessed: 19-June-2025 ]}

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@misc{reference.wolfram_2025_excludedforms, author="Wolfram Research", title="{ExcludedForms}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/ExcludedForms.html}", note=[Accessed: 19-June-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_excludedforms, organization={Wolfram Research}, title={ExcludedForms}, year={1996}, url={https://reference.wolfram.com/language/ref/ExcludedForms.html}, note=[Accessed: 19-June-2025 ]}

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@online{reference.wolfram_2025_excludedforms, organization={Wolfram Research}, title={ExcludedForms}, year={1996}, url={https://reference.wolfram.com/language/ref/ExcludedForms.html}, note=[Accessed: 19-June-2025 ]}