Arctan avx512 #899

Job	Run time
build-macos (macos-latest)	37s
Build on ubuntu-20.04 g++-7	53s
build-macos (flyci-macos-large-latest-m2)	3s
Build on ubuntu-20.04 g++-8	51s
Build on ubuntu-latest g++-9	1m 1s
Build on ubuntu20.04 aarch64 g++-8	6m 46s
Build on ubuntu-latest g++-10	1m 8s
Build static on ubuntu-latest	1m 9s
Build on ubuntu20.04 aarch64 g++-9	6m 56s
Build on ubuntu-20.04 clang-7	1m 1s
Build on ubuntu20.04 aarch64 g++-10	6m 36s
Build on ubuntu-20.04 clang-8	1m 7s
build-windows	2m 19s
Build on ubuntu22.04 aarch64 g++-12	6m 58s
Build on ubuntu-20.04 clang-9	1m 2s
Build on ubuntu20.04 aarch64 clang-9	10m 23s
Build on ubuntu-20.04 clang-10	1m 5s
Build on ubuntu-20.04 clang-11	54s
Build on ubuntu-latest clang-12	1m 1s
Build on ubuntu-latest clang-13	1m 2s
Build on ubuntu20.04 aarch64 clang-10	10m 22s
Build on ubuntu-latest clang-14	1m 3s
Build on ubuntu22.04 aarch64 clang-14	9m 51s
Build on ubuntu22.04 armv7 g++	6m 31s
Build on ubuntu22.04 ppc64le g++-12	6m 29s
Build on ubuntu22.04 s390x g++-12	5m 25s
Build on ubuntu22.04 riscv64 g++-12	5m 51s
	1h 38m 24s

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