3 September 2020

# My commonly used vim digraphs

by Zubair Abid

I need symbols like ϵ ≠ ± ∩ ∪ from time to time, and have been using vim digraphs for the same. This post is a quick cheatsheet for myself, based on common usage.

Why not mathjax? Jekyll (kramdown) has some issues with requiring $$math$$ instead of just using $math$. Is it an easily solvable problem? Maybe, but this is useful anyway because sometimes I need to put math in a non-markdown document that will not be rendered. Hence.

# Very basics:

In order to use digraphs, in Insert mode, press Ctrl+k, and then enter the key combination. This may require multibyte support.

# The list

## Math

Character Digraph
∈ , ∋ (- , )-
≤ , ≥ , ≠ , ≡ =< , >= , != , =3
⇐ , ⇒ <= , =>
₀₋₉ 0s … 9s
⁰⁻⁹ 0S … 9s
nS 1
∪ , ∩ )U , (U
⊂ , ⊃ , ⊆ , ⊇ (C , )C , (_, )_
≈ , ≃ , ≌ , ≅ ?2 , ?- , =? , ?=
1. Note: ns does not work, it returns ش

tags: vim - configuration - setup - editing
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