Questions tagged [entity]
Questions about Entity expressions and the use of standardized representations of specific real-world entities.
201 questions
1 vote
2 answers
118 views
How can I avoid error messages from ToEntity and deal with input differently if entity not known?
I would like to avoid this type of message and deal with the input to ToEntity differently, if Mathematica does not recognize the entity. ...
1 vote
0 answers
78 views
Does RelationalDatabase use DatabaseLink`?
Consider the following RelationalDatabase: ...
4 votes
1 answer
438 views
What is the correct decay constant and half-life for carbon 14?
I'm trying to find the correct decay constant, in seconds, for carbon 14. I get ...
3 votes
2 answers
272 views
Polygon from Periodic Tiling
Mathematica has a set of periodic tilings periodictilings = Entity["PeriodicTiling"] // EntityList Say I take one ...
6 votes
0 answers
286 views
TimeLine Plot of Every Historical Country/Empire - how to control y axis
tl;dr - how do I control the y axis of the timelineplot such that I might get the same location to appear at the same level? I'm trying to see if Mathematica can make a similar timeline to this. ...
2 votes
0 answers
91 views
Upper and lower case sensitivity when entering entities, but inconsistent
When you type Entity["Chemical", "Hydrogen"] or Entity["Chemical", "hydrogen"] it will ...
3 votes
1 answer
123 views
A few national flags not converting properly to pdf
Why is the pdf output for the following flags not rendering properly? I am using v12.2.0 on Win7-x64. ...
3 votes
1 answer
106 views
Errors on entity CrystalSystem
Following the tutorial on Exploring Symmetries of Crystal Systems and using the code below: ...