Questions tagged [built-in-symbols]

Questions related to handling built-in symbols and functions, for example why they behave a certain (possibly unexpected) way.

18 questions with no upvoted or accepted answers
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Built-in symbols which are more close to the root/core of Wolfram Language

Seeing the vast scope of science covered by the Wolfram Language (WL) and the large amount of built-in symbols (functions), I am curious to know which built-in symbols are more close to the root of WL,...
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100 views

Not comprehending PowerMod

Bug introduced in 10.3 or earlier and persisting through 11.3.0 or later The bug is not present in 10.0. By definition, PowerMod[a, 1/r, m] finds a modular rth root of a mod m. Here's a pair of ...
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55 views

Why ReadList ignores NullRecords for Number?

When thinking on this recent question the immediately obvious solution which came to my mind was to use ReadList with options ...
5
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0answers
279 views

Organizing Wolfram language symbols with Entity

Here's a word cloud tally of the ~5k System names split at camel humps, with the long tail cropped. What resources are available to organize these terms using the new ...
4
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0answers
117 views

Crossing a symbol like p, similar to HBAR

Is it possible in Mathematica to cross a symbol like p, similar to h-bar, used to denote the Planck constant? Picture in case of font problems: In case of h, we have HBAR, inputted as ESC-hb-ESC ...
3
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0answers
73 views

Use of ContainsAny in EntityClass

The documentation page for EntityClass states that Property values in implicitly defined entity classes may make use of Quantity (and intervals of Quantity) for ...
3
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0answers
48 views

Custom iterable objects

I understand that to create objects with custom behavior with respect to existing code one uses upvalues. However, I'm at loss when it comes to guess what interface is expected from objects fed to ...
2
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0answers
60 views

Built-in functions for Homotopy group

Does Mathematica have built-in functions for Homotopy group, for example for computing $$\pi_n(S^m)=?$$ or more generally $n$-th homotopy group, $$\pi_n(X)=?$$ for some $X$. (I search, but I could ...
2
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0answers
57 views

How would you rewrite these procedurally coded internal routines in functional form?

I came across the following two internal functions SimplifyDump`AbsToSign and SimplifyDump`SignToAbs that have been written ...
1
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0answers
51 views

Wigner-D in MMA

Can some nice MMA fellow explain to me why buit-in Wigner-D function is defined as $D_{mm'}^{J} = e^{i(\phi m+ \gamma m')} d_{mm'}^{j}(\theta)$ against the convention, used by most people on Earth, ...
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77 views

Controlling precision/accuracy inside built-in commands

Some functions (such as Erf) appear to use NIntegrate internally. In such cases, is there a way to control such options of ...
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50 views

How to run the command 'Distribute' on large product of multivariable polynomials without simplifying it

I am new to Mathematica, so pardon if question is trivial. I am trying to expand (i.e multiply out the factors) an polynomial expression $d$, with many factors, obtained as a result of taking ...
1
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0answers
55 views

How to convert `LogTicks[0, 2][[1, 2]]` to a regular number

I want to convert the $10^i$ tick labels generated by LogTicks of the CustomTicks package to regular numbers. The first tick ...
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0answers
206 views

Two issues about Underline(d)

From the Help Browser Style["abcd xyz", FontVariations -> {"Underline" -> True}] abcd xyz The text is NOT Underlined, contrary to the online version Also ...
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57 views

Upgrade a built-in function: Nearest (mimic the behavior of V. 10.1 in previous versions)

For versions prior to 10.1 the following returns a error message timedat = {1.1, 2, 3.3}; equalTime = {1, 2, 3}; Flatten@Nearest[timedat, equalTime] Nearest::...
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33 views

Mathematica does not recognize NestGraph

When I try to use the built-in command NestGraph, Mathematica doesn't recognize it. So it just outputs whatever I put in without doing anything. Do I need a special package for NestGraph?
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0answers
43 views

How can I simplify expressions correctly?

the final output of my code gives this expression which i call ttt: ...
0
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0answers
55 views

built-in functions with one argument

I want to find the (NumericFunction) built-in functions that take exactly one document. ...