Implement float math functions for two arrays #489

Job	Run time
Pass MSRV values to other jobs	3s
clippy/stable	27s
cargo-careful	1m 59s
format/nightly	14s
nostd/thumbv6m-none-eabi/stable	21s
docs/nightly	22s
cross_test/i686-unknown-linux-gnu/stable	1m 35s
miri	7m 4s
cross_test/s390x-unknown-linux-gnu/stable	5m 54s
blas-msrv	41s
tests/stable	2m 45s
tests/nightly	2m 53s
tests/1.64.0	3m 48s
tests/beta	2m 40s
conclusion	4s
	30m 50s

Provide feedback