Let’s test an equation outside, no latex keyword $i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>$

$latex i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>$

which I enabled by installing Jetpack, then going in to Jetpack settings, writing tab and enabling LaTeX for math equations

Here it is again outside a shortcode block:

$latex i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>$

Clear highlight: $latex i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>$

White highlight: $latex i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>$

Ok, so shortcode block is not needed, but it has a weird shaded box around the equation which I don’t like…

Jetpack

Katex? <mark style="background-color:#fff" class="has-inline-color">i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right></mark>

Got it working! No Jetpack! Katex plugin. use katex in square bracket tags, then equation with no $ signs (which I also don’t like, but it looks nice…

Katex shortcode? i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>

Katex shortcode? $i\hbar\frac{\partial}{\partial t}\left|\Psi(t)\right>=H\left|\Psi(t)\right>$