test

[DOC] `using Math::N` in examples #59

Job	Run time
ruby-versions / Generate Ruby versions	3s
build (2.5 / windows-latest)	2m 31s
build (2.5 / ubuntu-latest)	22s
build (2.7 / ubuntu-latest)	33s
build (2.6 / ubuntu-latest)	25s
build (2.6 / macos-latest)	33s
build (2.6 / windows-latest)	3m 0s
build (2.7 / macos-latest)	38s
build (3.1 / windows-latest)	2m 20s
build (3.2 / ubuntu-latest)	15s
build (3.0 / macos-latest)	17s
build (3.3 / macos-latest)	19s
build (3.0 / windows-latest)	2m 25s
build (3.1 / ubuntu-latest)	16s
build (3.2 / windows-latest)	2m 29s
build (head / ubuntu-latest)	16s
build (3.3 / ubuntu-latest)	21s
build (3.1 / macos-latest)	16s
build (2.7 / windows-latest)	3m 28s
build (3.2 / macos-latest)	15s
build (3.4 / ubuntu-latest)	14s
build (3.4 / windows-latest)	2m 29s
build (head / macos-latest)	17s
build (3.3 / windows-latest)	2m 2s
build (head / windows-latest)	2m 13s
build (2.5 / macos-13)	54s
build (3.0 / ubuntu-latest)	17s
build (3.4 / macos-latest)	24s
	29m 52s

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