Testing double backslash inline and display math delimiters.
Inline math with double backslash: \\(x^2 + y^2 = z^2\\) in text.
Display math with double backslash:
\\[
\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2}
\\]
More inline: \\(\alpha + \beta = \gamma\\) and \\(E = mc^2\\).
Inline display math with double backslash:
\\[
E = mc^2
\\]
in text.