Change `linspace` to take a range argument. #631

Job	Run time
nostd/thumbv6m-none-eabi/stable	11s
cargo-careful	1m 19s
miri	9m 40s
clippy/stable	22s
cross_test/i686-unknown-linux-gnu/stable	52s
format/nightly	15s
docs/nightly	20s
cross_test/s390x-unknown-linux-gnu/stable	53s
Pass MSRV values to other jobs	3s
blas-msrv	50s
tests/stable	1m 2s
tests/nightly	1m 10s
tests/beta	59s
tests/1.64.0	1m 15s
conclusion	0s
	19m 11s

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