Felix Gerick

InexactError in Multivariate Fun definition

4

I'm trying to create a multivariate function with complex Laurent polynomials, but ```julia Fun((x,y)->x*cos(y),Chebyshev()⊗Laurent()) ``` yields ``` InexactError: Float64(0.5 + 6.123233995736765e-17im) Stacktrace: [1] Type at ./complex.jl:37 [inlined] [2] convert at...

Type instability SymPy Sym

3

Hi, I encountered the following problem: ```julia using TypedPolynomials, SymPy @polyvar x @syms a differentiate(a*x^0-a,x) ``` gives a ``` ERROR: MethodError: no method matching zero(::Type{Any}) Closest candidates are: zero(::Type{Union{Missing, T}})...

Refactoring package

3

Hi Martin, I have worked with a previous version of your package and extended it a bit (different norms possible, arbitrary datatypes) during my PhD thesis. It's now in a...

Unexpected error while parsing `\boldsymbol`

1

```julia julia> generate_tex_elements(L"\boldsymbol{\nabla}") ERROR: TeXParseError: unexpected error while parsing at position 12 (string index 12) \boldsymbol{\nabla} ^ Stack before [1] TeXExpr :expr Stacktrace: [1] texparse(data::String; showdebug::Bool) @ MathTeXEngine ~/.julia/packages/MathTeXEngine/na9MW/src/parser/parser.jl:303 [2]...

Hi, I have trouble making an offline plot similar to the surface plot in the [documentation of WGLMakie.jl](http://juliaplots.org/WGLMakie.jl/stable/). I don't want to have sliders, just a movable camera. I don't...

add BIGMUDI model loader

5

Hi Clemens, I added a function to load in the BIGMUDI models of Patrick Arneitz and colleagues (https://cobs.zamg.ac.at/gsa/index.php/en/models-and-databases/historical-geomagnetic-field). When I evaluate the model and compare with the tool to evaluate...

Star[u,v] not working properly in Mathematica (Wolfram Engine) 14.3

1

I recently upgraded computer and reinstalled the latest Wolfram Engine 14.3. I installed the latest Rubi `PacletInstall["https://rulebasedintegration.org/Rubi-4.17.3.0.paclet"]` and ran into an issue. It is actually visible from the example given...

```julia julia> f = Fun(Laurent(), [1,2,3,4]) Fun(Laurent(【0.0,6.283185307179586❫), [1, 2, 3, 4]) julia> cumsum(f) ERROR: AssertionError: ncoefficients(f) == 0 || abs(f.coefficients[1]) < 100 * eps() Stacktrace: [1] integrate(f::Fun{Taylor{PeriodicSegment{…}, ComplexF64}, Int64, SubArray{Int64,...