Bump version of `*-math` to 0.3.1

Branch: new_math

Branch: main

Merged

#78 · Created 2022-08-12 · Last updated 2022-08-18

Merged pull request

Merged in new_math (pull request #78)

1b0def6·Author: Arthur Eigenbrot·Closed by: Arthur Eigenbrot·2022-08-18

Does what it says on the tin. This is just a PR so the change is captured correctly in the changelog.