Add more element-wise math functions for floats (#1507) #479

Job	Run time
Pass MSRV values to other jobs	4s
clippy/stable	22s
format/nightly	15s
miri	8m 24s
docs/nightly	27s
cross_test/s390x-unknown-linux-gnu/stable	6m 56s
nostd/thumbv6m-none-eabi/stable	20s
cross_test/i686-unknown-linux-gnu/stable	1m 36s
cargo-careful	1m 56s
blas-msrv	37s
tests/beta	2m 36s
tests/stable	2m 48s
tests/nightly	2m 57s
tests/1.64.0	3m 40s
conclusion	2s
	33m 0s

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