Quick Formula Editing

Liii STEM has a dedicated Math Mode for formula editing, numbering, and cross-referencing. It also integrates efficient features such as LEGO symbols, Tab cycling, and Magic Paste to speed up math writing.

What Is Math Mode

Math Mode in Liii STEM provides complete math environments. Any math-related content should be entered in Math Mode.

In text mode, the mode toolbar mainly contains text-environment actions (for example, inserting sections). In Math Mode, the mode toolbar provides more mathematical symbols.

The image below shows the toolbar in different modes (default theme):

Enter Math Mode

Use the mode toolbar

In text mode, click the π button in the mode toolbar, then choose inline formula, single-line formula, or multi-line formula.

Inline formula

Single-line formula

Multi-line formula

Use keyboard shortcuts

Inline formula: $

Single-line formula: Alt + $ / Option + $

Multi-line formula in \eqnarray: Alt + & / Option + &

Multi-line formula in \align: Ctrl + $ / Command + $ Shortcuts are active only with an English input method.

Final Rendering

• Inline formula

• Single-line formula

• Multi-line formula

The two multi-line environments use different alignment styles:

Multi-line formula in eqnarray format: Alt + & / Option + &

Multi-line formula in align format: Ctrl + $ / Command + $

Equation Numbering and Referencing

Number equations

In Math Mode, click 123 on the focus toolbar, or use the \eq-number command to number formulas.

Piecewise functions can be numbered as a whole formula, or line by line. If you select the formula and click 123, the whole multi-line formula is numbered.

eqnarray format supports only line-by-line numbering.

align format supports only line-by-line numbering.

Label and reference equations

You can label numbered equations in Liii STEM and reference them later in the same document.

For detailed steps, see Cross-Reference and Numbering.