Change `linspace` to take a range argument. #633

Job	Run time
clippy/stable	18s
miri	10m 41s
cross_test/s390x-unknown-linux-gnu/stable	9m 6s
format/nightly	14s
cross_test/i686-unknown-linux-gnu/stable	1m 53s
Pass MSRV values to other jobs	4s
docs/nightly	23s
cargo-careful	2m 6s
nostd/thumbv6m-none-eabi/stable	20s
tests/beta	2m 21s
tests/stable	2m 45s
tests/1.64.0	3m 29s
blas-msrv	42s
tests/nightly	3m 25s
conclusion	2s
	37m 49s

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