Streamline log1p definition in linearization.py

9 jobs for expm1 in 8 minutes and 11 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build Docker
passed #970710
build_docker_from_cache

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  Test
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test_mpi

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test_serial

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  Demo Runs
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run_bernoulli

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run_curve_fitting

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run_getting_started_1

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run_getting_started_2

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run_getting_started_3

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run_ipynb

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