Replace instances of 4pi*1e-7 with scipy.constants.mu_0

[dpanici]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 91.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.69%. Comparing base (af31d5b) to head (5e90926).
Report is 7 commits behind head on master.

Files with missing lines	Patch %	Lines
desc/integrals/singularities.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1513   +/-   ##
=======================================
  Coverage   95.69%   95.69%           
=======================================
  Files         101      101           
  Lines       25569    25569           
=======================================
  Hits        24467    24467           
  Misses       1102     1102           

Files with missing lines	Coverage Δ
desc/coils.py	97.98% <100.00%> (ø)
desc/magnetic_fields/_core.py	96.40% <100.00%> (ø)
desc/nestor.py	98.49% <100.00%> (ø)
desc/integrals/singularities.py	91.28% <66.66%> (ø)

... and 2 files with indirect coverage changes

[github-actions]

|             benchmark_name             |         dt(%)          |         dt(s)          |        t_new(s)        |        t_old(s)        | 
| -------------------------------------- | ---------------------- | ---------------------- | ---------------------- | ---------------------- |
 test_build_transform_fft_lowres         |     +3.22 +/- 6.82     | +1.78e-02 +/- 3.78e-02 |  5.72e-01 +/- 3.1e-02  |  5.54e-01 +/- 2.1e-02  |
 test_equilibrium_init_medres            |     +1.14 +/- 3.05     | +5.03e-02 +/- 1.34e-01 |  4.45e+00 +/- 1.2e-01  |  4.40e+00 +/- 5.1e-02  |
 test_equilibrium_init_highres           |     +0.56 +/- 2.56     | +3.15e-02 +/- 1.45e-01 |  5.68e+00 +/- 1.2e-01  |  5.65e+00 +/- 8.7e-02  |
 test_objective_compile_dshape_current   |     +0.37 +/- 1.33     | +1.48e-02 +/- 5.36e-02 |  4.06e+00 +/- 4.2e-02  |  4.04e+00 +/- 3.3e-02  |
 test_objective_compute_dshape_current   |     +1.53 +/- 5.03     | +8.17e-05 +/- 2.69e-04 |  5.42e-03 +/- 2.1e-04  |  5.34e-03 +/- 1.7e-04  |
 test_objective_jac_dshape_current       |     +0.90 +/- 6.78     | +3.89e-04 +/- 2.93e-03 |  4.37e-02 +/- 2.3e-03  |  4.33e-02 +/- 1.8e-03  |
 test_perturb_2                          |     +1.68 +/- 1.73     | +3.40e-01 +/- 3.50e-01 |  2.06e+01 +/- 2.4e-01  |  2.03e+01 +/- 2.5e-01  |
 test_proximal_freeb_jac                 |     +0.23 +/- 1.12     | +1.71e-02 +/- 8.30e-02 |  7.45e+00 +/- 4.8e-02  |  7.43e+00 +/- 6.8e-02  |
 test_solve_fixed_iter                   |     +1.14 +/- 1.96     | +3.72e-01 +/- 6.41e-01 |  3.30e+01 +/- 3.9e-01  |  3.27e+01 +/- 5.1e-01  |
 test_LinearConstraintProjection_build   |     -0.01 +/- 2.51     | -8.17e-04 +/- 2.68e-01 |  1.07e+01 +/- 2.1e-01  |  1.07e+01 +/- 1.7e-01  |
 test_build_transform_fft_midres         |     +3.96 +/- 5.72     | +2.47e-02 +/- 3.57e-02 |  6.49e-01 +/- 3.0e-02  |  6.24e-01 +/- 1.9e-02  |
 test_build_transform_fft_highres        |     +0.76 +/- 3.29     | +7.60e-03 +/- 3.29e-02 |  1.01e+00 +/- 2.1e-02  |  1.00e+00 +/- 2.5e-02  |
 test_equilibrium_init_lowres            |     +4.34 +/- 4.30     | +1.75e-01 +/- 1.74e-01 |  4.22e+00 +/- 1.3e-01  |  4.04e+00 +/- 1.2e-01  |
 test_objective_compile_atf              |     -1.19 +/- 3.47     | -9.91e-02 +/- 2.90e-01 |  8.24e+00 +/- 2.3e-01  |  8.34e+00 +/- 1.8e-01  |
 test_objective_compute_atf              |     -0.08 +/- 5.21     | -1.47e-05 +/- 9.08e-04 |  1.74e-02 +/- 8.5e-04  |  1.74e-02 +/- 3.3e-04  |
 test_objective_jac_atf                  |     -0.27 +/- 2.91     | -5.32e-03 +/- 5.79e-02 |  1.98e+00 +/- 4.1e-02  |  1.99e+00 +/- 4.1e-02  |
 test_perturb_1                          |     -2.75 +/- 3.95     | -4.34e-01 +/- 6.22e-01 |  1.53e+01 +/- 5.1e-01  |  1.58e+01 +/- 3.5e-01  |
 test_proximal_jac_atf                   |     +0.19 +/- 1.45     | +1.59e-02 +/- 1.20e-01 |  8.31e+00 +/- 9.1e-02  |  8.29e+00 +/- 7.8e-02  |
 test_proximal_freeb_compute             |     +1.81 +/- 1.44     | +3.61e-03 +/- 2.87e-03 |  2.04e-01 +/- 2.2e-03  |  2.00e-01 +/- 1.8e-03  |
 test_solve_fixed_iter_compiled          |     -0.88 +/- 1.34     | -1.85e-01 +/- 2.82e-01 |  2.09e+01 +/- 1.9e-01  |  2.11e+01 +/- 2.1e-01  |

[rahulgaur104]

Why not import once at the top and use the same mu_0?

[dpanici]

I meant to remove the scipy.constants import and just use the scipy module. I'll do that now

[rahulgaur104]

Does importing mu0 once affect jit?

[dpanici]

no, I just didn't think to change the imports for this file.