Moremath

Additional notation, constants and utilities for doing math in Typst.

To use, just import:

#import "@preview/moremath:0.1.0": *

Features

Bracket sizing

When parentheses/brackets get too nested, it can be useful to force some of them to be larger. moremath provides two helpers for this:

big: instead of writing [(a + b) + c], to make the brackets bigger, you can write big([(a + b) + c]). This works for any kind of surrounding brackets/parentheses/braces.

bigp: instead of writing ((a + b) + c), to make the external parentheses bigger, you can write bigp((a + b) + c). This is essentially the same as big, simply avoiding an extra set of parentheses.

Numbered equations

Until we get better equation numbering built-in (e.g., for numbering only equations that are labelled), we have to manually indicate which equations to number. In order to make this easier, one can use our numbered function:

$ f(x) = x^2 $  // non-numbered

#numbered[ $ f(x) = x^2 $ <my-label> ]  // numbered

Handy caligraphic letters

Caligraphic letters (e.g., cal(G)) are very common in math. In order to make them easier to typeset, and akin to Typst's built-in handy blackboard letters (e.g., RR), we provide aliases for caligraphic letters via double lowercase letters. So, for example, gg becomes cal(G), and aa becomes cal(A). Except for oo, that's infinity, as in plain Typst.

Additional notation

We also provide a bunch of additional notation for mathematics in general. Do note, however, that what we provide is heavily skewed towards the author's current research interests :)

If you have suggestions for more notation to be added, feel free reach out and contribute!

Probability theory

• indep: Independence symbol (double perp).
• nindep: Crossed out indep, for denoting non-independence.
• Pr: alternative notation for probability.
• Ex: alternative notation for expectation.
• Var: variance.
• Cov: covariance.
• ind: indicator function, denoted by bb(1).
• iid: text holding "iid". Can be used, e.g., as X_1, ..., X_n ~^iid P.

Analysis

• oh: small oh
• Oh: big oh
• ohmega: small omega
• Ohmega: big omega
• Thetah: big theta
• deriv: general derivative operator
• dist: upright "d", for metrics

Misc

• sign: sign function.
• argmin: arg min operator, supporting limits.
• argmax: arg max operator, supporting limits.