It can not be concatenated with other strings

[Leon6j]

My goal is to have my special character concatenated with some other strings, so that they can be used as the xlabel or ylabel of my plot. Here is an example: "Dissolved oxygen (μmol/kg)". Unfortunately, I'm unable to do that. Below are what I've tried so far:

a = L"\mu"
𝜇

b = "mol"
“mol”

C1 = join(a,b)
“$mol\molmmolumol$”

C2 = string(a,b)
“$\mu$mol”

C3 = a * b
“$\mu$mol”

C4 = [a b]
1×2 Matrix{AbstractString}:
L"$\mu$" "mol"

C5 = hcat(a,b)
1×2 Matrix{AbstractString}:
L"$\mu$" "mol"

[stevengj]

Closing as a duplicate of #17.

a * b works fine — it is just producing an ordinary string, which should still produce an equation in your plot label even though it doesn't display as rendered math in a notebook. You can also do LaTeXString(a * b) if you want it to render in the notebook.

(There is a common misconception that LaTeXString does some LaTeX rendering itself — it is mainly just a convenient way to type a LaTeX equation as a string without adding lots of extra backslashes. An ordinary String can also be used to pass math labels to plots.)