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FromEntity
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FromEntity

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FromEntity[entity]

returns a Wolfram Language object corresponding to an entity.

Details

Examples

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Basic Examples  (9)Summary of the most common use cases

Make a character from an entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-ll800h
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-28juol
Out[2]=2

Make a color from an entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-m1hrft
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-5df5o7
In[3]:=3
✖
https://wolfram.com/xid/0cg3682t6-1pfvo3
Out[3]=3
In[4]:=4
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https://wolfram.com/xid/0cg3682t6-780b6t
In[5]:=5
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https://wolfram.com/xid/0cg3682t6-s3y2f0
Out[5]=5
In[6]:=6
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https://wolfram.com/xid/0cg3682t6-nmveyn
In[7]:=7
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https://wolfram.com/xid/0cg3682t6-u5sx32
Out[7]=7

Make a graph from an entity:

In[1]:=1
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https://wolfram.com/xid/0cg3682t6-o3luv0
Out[1]=1

Make a mathematical constant from an entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-eupw20
Out[1]=1

Use FromEntity to discover how to express a given mathematical function entity in the Wolfram Language:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-uevkp
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-bq6a3w
Out[2]=2

Give a quantity corresponding to a physical constant entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-b2luot
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-6bfy46

Give a quantity variable corresponding to a physical quantity entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-f6z693
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-i0nnzz

Make a polyhedron from an entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-l4mj3y
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-xzsox6
Out[2]=2

Make a Wolfram Language symbol from an entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-tthb22
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-ez8eqr
Out[2]=2
In[3]:=3
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https://wolfram.com/xid/0cg3682t6-7f9csb
Out[3]=3

Scope  (9)Survey of the scope of standard use cases

"Character"  (1)

Convert from character entity:

In[1]:=1
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https://wolfram.com/xid/0cg3682t6-mnstdc
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-why43x

"Color"  (1)

Convert from color entities:

In[1]:=1
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https://wolfram.com/xid/0cg3682t6-2za59d
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-4497q
Out[2]=2
In[3]:=3
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https://wolfram.com/xid/0cg3682t6-vi0vsf
Out[3]=3

"Graph"  (1)

Use a graph obtained from free-form input:

In[1]:=1
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https://wolfram.com/xid/0cg3682t6-kpcxks
Out[1]=1

Use the "Entity" property from GraphData:

In[2]:=2
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https://wolfram.com/xid/0cg3682t6-74yd7
Out[2]=2

Use a graph with a known canonical name:

In[3]:=3
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https://wolfram.com/xid/0cg3682t6-3ij3kk
Out[3]=3

Use a member of an indexed graph family known to EntityValue:

In[4]:=4
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https://wolfram.com/xid/0cg3682t6-m8ag7f
Out[4]=4

Convert from an explicitly constructed graph entity:

In[5]:=5
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https://wolfram.com/xid/0cg3682t6-p5zu5u
Out[5]=5

"MathematicalConstant"  (1)

Make a mathematical constant from an entity:

In[1]:=1
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https://wolfram.com/xid/0cg3682t6-3fcak4
Out[1]=1

"MathematicalFunction"  (1)

Convert a mathematical function entity taking a single argument:

In[1]:=1
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https://wolfram.com/xid/0cg3682t6-e661gr
Out[1]=1

Convert mathematical function entities taking multiple arguments:

In[2]:=2
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https://wolfram.com/xid/0cg3682t6-tlj02j
Out[2]=2
In[3]:=3
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https://wolfram.com/xid/0cg3682t6-qfeyr2
Out[3]=3

"PhysicalConstant"  (1)

Convert a physical constant entity to a quantity:

In[1]:=1
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https://wolfram.com/xid/0cg3682t6-gv75ve
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-tmg12w
Out[2]=2

"PhysicalQuantity"  (1)

Give a quantity variable corresponding to a physical quantity entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-kucnf9
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0cg3682t6-pwqtz1

"Polyhedron"  (1)

Make a polyhedron from an entity:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-4sud26
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0cg3682t6-0iwb9v
Out[2]=2

"WolframLanguageSymbol"  (1)

Convert a Wolfram Language symbol entity into the corresponding actual symbol:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-88iic0
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-c5fwgy
Out[2]=2

Properties & Relations  (4)Properties of the function, and connections to other functions

The "Entity" property of GraphData can be used to return an entity on which FromEntity can operate:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-0vv4vw
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-uj2485
Out[2]=2

Return the graph directly using the "Graph" property:

In[3]:=3
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https://wolfram.com/xid/0cg3682t6-lp9k03
Out[3]=3

"Graph" is also the default property for GraphData:

In[4]:=4
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https://wolfram.com/xid/0cg3682t6-h1h95a
Out[4]=4

Any member of "AlternateStandardNames" can be used together with "Entity" in GraphData to return an entity on which FromEntity can operate:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-gc374g
Out[1]=1
In[2]:=2
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https://wolfram.com/xid/0cg3682t6-5nvj8j
Out[2]=2

For colors, FromEntity typically gives the same results as returned by ColorData:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-9mmpqa
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0cg3682t6-0oyjfs
In[3]:=3
✖
https://wolfram.com/xid/0cg3682t6-udnhil
Out[3]=3
In[4]:=4
✖
https://wolfram.com/xid/0cg3682t6-xp03l3

FromEntity can return graphs for certain indexed families even though they are not known to GraphData:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-uhcfft
Out[1]=1

This graph is not known to GraphData:

In[2]:=2
✖
https://wolfram.com/xid/0cg3682t6-vv0kb8
Out[2]=2

But it is known to EntityValue:

In[3]:=3
✖
https://wolfram.com/xid/0cg3682t6-8mbzbi
Out[3]=3

Possible Issues  (4)Common pitfalls and unexpected behavior

Non-entity Wolfram Language representations are not available for all entity types:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-plfhw1
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0cg3682t6-r2cmt5
Out[2]=2

Applying ToEntity to FromEntity does not round-trip for colors:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-iee6l4
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0cg3682t6-su4xqs
In[3]:=3
✖
https://wolfram.com/xid/0cg3682t6-ycpq63
Out[3]=3

The result of FromEntity may evaluate if the underlying symbol autoevaluates:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-tfm5e6
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0cg3682t6-sypu1c

Compare with result of evaluating the symbol Red:

In[3]:=3
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https://wolfram.com/xid/0cg3682t6-k7680v

Different mathematical function entities may convert to the same Wolfram Language function:

In[1]:=1
✖
https://wolfram.com/xid/0cg3682t6-82wo48
Out[1]=1
In[2]:=2
✖
https://wolfram.com/xid/0cg3682t6-xo198a
Out[2]=2
Wolfram Research (2014), FromEntity, Wolfram Language function, https://reference.wolfram.com/language/ref/FromEntity.html (updated 2022).
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Wolfram Research (2014), FromEntity, Wolfram Language function, https://reference.wolfram.com/language/ref/FromEntity.html (updated 2022).

Text

Wolfram Research (2014), FromEntity, Wolfram Language function, https://reference.wolfram.com/language/ref/FromEntity.html (updated 2022).

✖
Wolfram Research (2014), FromEntity, Wolfram Language function, https://reference.wolfram.com/language/ref/FromEntity.html (updated 2022).

CMS

Wolfram Language. 2014. "FromEntity." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2022. https://reference.wolfram.com/language/ref/FromEntity.html.

✖
Wolfram Language. 2014. "FromEntity." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2022. https://reference.wolfram.com/language/ref/FromEntity.html.

APA

Wolfram Language. (2014). FromEntity. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FromEntity.html

✖
Wolfram Language. (2014). FromEntity. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FromEntity.html

BibTeX

@misc{reference.wolfram_2025_fromentity, author="Wolfram Research", title="{FromEntity}", year="2022", howpublished="\url{https://reference.wolfram.com/language/ref/FromEntity.html}", note=[Accessed: 27-May-2025 ]}

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@misc{reference.wolfram_2025_fromentity, author="Wolfram Research", title="{FromEntity}", year="2022", howpublished="\url{https://reference.wolfram.com/language/ref/FromEntity.html}", note=[Accessed: 27-May-2025 ]}

BibLaTeX

@online{reference.wolfram_2025_fromentity, organization={Wolfram Research}, title={FromEntity}, year={2022}, url={https://reference.wolfram.com/language/ref/FromEntity.html}, note=[Accessed: 27-May-2025 ]}

✖
@online{reference.wolfram_2025_fromentity, organization={Wolfram Research}, title={FromEntity}, year={2022}, url={https://reference.wolfram.com/language/ref/FromEntity.html}, note=[Accessed: 27-May-2025 ]}