* Added approx_eq! macro for expm1 tests.
Added approx_eq! macro for expm1 tests due to floating point arithmetic
inaccuracies, using default ULP & epsilon values. approx_eq! macro does
not work for NaN values, however, for tests this should be okay anyway!
Solves #664.
* Modified Cargo.toml to remove unneeded feature.
Removed std feature as was unused in test.
* Moves `float-cmp` to Dev Dependencies
Refactors tan() unit test, previously unused, to use approx_eq!() macro
for assertion to pass on CI.
* Fixes cargo fmt errors
New parser!
Plus loads of tidy up in various places.
Co-authored-by: Jason Williams <jwilliams720@bloomberg.net>
Co-authored-by: HalidOdat <halidodat@gmail.com>
Co-authored-by: Iban Eguia <iban.eguia@cern.ch>
Co-authored-by: Iban Eguia <razican@protonmail.ch>