Interpolate variables into latex matrix in Pluto

General Usage
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3

Hi Christopher. There are at least two ways to do this, one awkward way using the Julia standard library, and another one with the small LaTeXStrings package.

Standard library way, but involves lots of escaping on \:

import Markdown: MD, LaTeX
MD(LaTeX("\\mathbf{B} = \\begin{bmatrix} $(a) & $(b) \\\\ $(c) & $(d) \\end{bmatrix}"))

Using LaTeXStrings, with the interpolation done with %$ instead of just $:

using LaTeXStrings
L"""
\mathbf{B} = \begin{bmatrix} %$(a) & %$(b) \\ %$(c) & %$(d) \end{bmatrix}
"""

You can copy from below and paste into a .jl file to get a Pluto noteboook:

Pluto code 
### A Pluto.jl notebook ###

# v0.19.9

using Markdown

using InteractiveUtils

# ╔═╡ 67da1efe-f879-4fd6-8f36-f0c60bc80d3c

using LaTeXStrings

# ╔═╡ 2f96d0a8-1b64-4928-9bbf-6e2e27fb2339

begin

a = 1

b = 2

c = 3

d = 4

end

# ╔═╡ 52142a20-febc-11ec-2ab2-b9ed33ccfa8e

import Markdown: MD, LaTeX

# ╔═╡ 2ecb04c0-e21e-4fb5-84e3-34cb4145e90e

MD(LaTeX("\\mathbf{B} = \\begin{bmatrix} $(a) & $(b) \\\\ $(c) & $(d) \\end{bmatrix}"))

# ╔═╡ dbdba330-1f1f-44c2-b3f9-044b676fba1f

L"""

\mathbf{B} = \begin{bmatrix} %$(a) & %$(b) \\ %$(c) & %$(d) \end{bmatrix}

"""

# ╔═╡ b5b63942-7c45-4c4a-97af-025a3e961d1c

# ╔═╡ 00000000-0000-0000-0000-000000000001

PLUTO_PROJECT_TOML_CONTENTS = """

[deps]

LaTeXStrings = "b964fa9f-0449-5b57-a5c2-d3ea65f4040f"

Markdown = "d6f4376e-aef5-505a-96c1-9c027394607a"

[compat]

LaTeXStrings = "~1.3.0"

"""

# ╔═╡ 00000000-0000-0000-0000-000000000002

PLUTO_MANIFEST_TOML_CONTENTS = """

# This file is machine-generated - editing it directly is not advised

julia_version = "1.7.1"

manifest_format = "2.0"

[[deps.Base64]]

uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"

[[deps.LaTeXStrings]]

git-tree-sha1 = "f2355693d6778a178ade15952b7ac47a4ff97996"

uuid = "b964fa9f-0449-5b57-a5c2-d3ea65f4040f"

version = "1.3.0"

[[deps.Markdown]]

deps = ["Base64"]

uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"

"""

# ╔═╡ Cell order:

# ╠═2f96d0a8-1b64-4928-9bbf-6e2e27fb2339

# ╠═52142a20-febc-11ec-2ab2-b9ed33ccfa8e

# ╠═2ecb04c0-e21e-4fb5-84e3-34cb4145e90e

# ╠═67da1efe-f879-4fd6-8f36-f0c60bc80d3c

# ╠═dbdba330-1f1f-44c2-b3f9-044b676fba1f

# ╠═b5b63942-7c45-4c4a-97af-025a3e961d1c

# ╟─00000000-0000-0000-0000-000000000001

# ╟─00000000-0000-0000-0000-000000000002
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