Merge pull request #54 from QuantEcon/general-packages-cleanup

Cleaned up some examples in the general_packages

Author: jlperla

lectures/more_julia/general_packages.md

@@ -44,8 +44,8 @@ Also see {doc}`data and statistical packages <../more_julia/data_statistical_pac
 tags: [hide-output]
 ---
 using LinearAlgebra, Statistics
-using QuantEcon, QuadGK, FastGaussQuadrature, Distributions, Expectations
-using Interpolations, Plots, LaTeXStrings, ProgressMeter
+using QuadGK, FastGaussQuadrature, Distributions, Expectations
+using Interpolations, Plots,  ProgressMeter
 ```
 
 ## Numerical Integration
@@ -82,15 +82,6 @@ f(x) = x^2
 
 The only problem with the `FastGaussQuadrature` package is that you will need to deal with affine transformations to the non-default domains yourself.
 
-Alternatively, `QuantEcon.jl` has routines for Gaussian quadrature that translate the domains.
-
-```{code-cell} julia
-using QuantEcon
-
-x, w = qnwlege(65, -2π, 2π);
-@show w ⋅ cos.(x); # i.e. on [-2π, 2π] domain
-```
-
 ### Expectations
 
 If the calculations of the numerical integral is simply for calculating mathematical expectations of a particular distribution, then [Expectations.jl](https://github.com/QuantEcon/Expectations.jl) provides a convenient interface.
@@ -213,15 +204,6 @@ See [here](https://docs.julialang.org/en/v1/stdlib/LinearAlgebra/) for further d
 
 ## General Tools
 
-### LaTeXStrings.jl
-
-When you need to properly escape latex code (e.g. for equation labels), use [LaTeXStrings.jl](https://github.com/stevengj/LaTeXStrings.jl).
-
-```{code-cell} julia
-using LaTeXStrings
-L"an equation: $1 + \alpha^2$"
-```
-
 ### ProgressMeter.jl
 
 For long-running operations, you can use the [ProgressMeter.jl](https://github.com/timholy/ProgressMeter.jl) package.