https://mcshelby.github.io/hugo-theme-relearn/pir/options/math/index.html Hugo art-x-pir https://mcshelby.github.io/hugo-theme-relearn/pir/shortcodes/math/index.html Mon, 01 Jan 0001 00:00:00 +0000 https://mcshelby.github.io/hugo-theme-relearn/pir/shortcodes/math/index.html Beaut'fl math and chemical formulae