input.md

---
eqnDisplayTemplate: |
  <span class="math-eq-container">
      <span class="math-eq">$$e$$</span>
      <span class="math-eq-index-math">$$i$$</span>
      <span class="math-eq-index-no-math">$$nmi$$</span>
      <span class="math-eq-index-raw-math">$$ri$$</span>
      <span class="math-eq-index-raw-no-math">$$nmri$$</span>
  </span>
---

$$e^{i\pi} = -1$${#eq:euler}

@eq:euler