symja_android_library
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axkr
:coffee: Symja - computer algebra language & symbolic math library. A collection of popular algorithms implemented in pure Java.
**Describe the bug** When solving an equation were either side computes to a value below a certain threshold the solution becomes zero, although the value is non zero if the...
**Describe the bug** When solving equations often too many or unnecessary error messages are printed, even when the equation(-set) was finally solved successfully. **To Reproduce and expected behavior** ``` >>...
`ListPointPlot3D, ListLinePlot3D, ListPlot3D` functions are used to generate a `Graphics3D` object. The `Graphics3D` objects are displayed with the support of the `mathics-threejs-backend` project: - https://github.com/Mathics3/mathics-threejs-backend See the implementation: - [ListPointPlot3D.java](https://github.com/axkr/symja_android_library/blob/master/symja_android_library/matheclipse-core/src/main/java/org/matheclipse/core/reflection/system/ListPointPlot3D.java)...
- [x] Tick to sign-off your agreement to the [Developer Certificate of Origin (DCO) 1.1](https://developercertificate.org) ## Description This PR (part of #265) replaces the source code of source code of...
Use the unicode-equivalent information about named characters to create a better looking string or operator output: See: - https://github.com/Mathics3/mathics-scanner/blob/master/mathics_scanner/data/named-characters.yml Examples: ``` \[CapitalDifferentialD] '\uF74B' => '\u2145' \[Implies] '\uF523' => '\u21D2' \[Equivalent]...
Someone interested in improving the Symja help/tutorial? - https://matheclipse.org/  Please improve the markdown documents here: - https://github.com/axkr/symja_android_library/tree/master/symja_android_library/doc
Someone with jquery/Javascript experience can possible improve the API demo web app a lot. Convert the JSON API response into an easy usable web interface: - https://github.com/axkr/symja_android_library/blob/master/symja_android_library/matheclipse-api/webapp/index.html The Java undertow...
Port the [Github MinimumPolynomial project](https://github.com/frankomackonelee/MinimumPolynomial) to Java to create a function: ``` >> MinimalPolynomial(2 - 5^(1/3) - 5^(2/3), x) x^3-6*x^2-3*x+52 ``` See - [PolynomialWithSurdSolution.java](https://github.com/frankomackonelee/MinimumPolynomial/blob/master/src/main/java/polynomialCalculation/PolynomialWithSurdSolution.java)
Implement a function `URLExecute(url-as-string)` which returns the reponse of a http query as JSON format from a Rest API and returns a [List()](https://github.com/axkr/symja_android_library/blob/master/symja_android_library/doc/functions/List.md) of nested Lists of [Rule](https://github.com/axkr/symja_android_library/blob/master/symja_android_library/doc/functions/Rule.md)s representing the...
Improve `PiecewiseExpand` function for example for nested `Piecewise` functions... Implement more cases in this method: - https://github.com/axkr/symja_android_library/blob/a08cee32deb0e78c7f12a54e153825f731168233/symja_android_library/matheclipse-core/src/main/java/org/matheclipse/core/builtin/Arithmetic.java#L6147 - create new JUnit test cases to test the implementation. - create markdown...