?

\[\tan^{-1}_* \frac{im}{re} \]
(FPCore (re im) :precision binary64 (atan2 im re))
double code(double re, double im) {
	return atan2(im, re);
}
real(8) function code(re, im)
    real(8), intent (in) :: re
    real(8), intent (in) :: im
    code = atan2(im, re)
end function
public static double code(double re, double im) {
	return Math.atan2(im, re);
}
def code(re, im):
	return math.atan2(im, re)
function code(re, im)
	return atan(im, re)
end
function tmp = code(re, im)
	tmp = atan2(im, re);
end
code[re_, im_] := N[ArcTan[im / re], $MachinePrecision]
\tan^{-1}_* \frac{im}{re}

Reproduce?

Please include this information when filing a bug report:

herbie shell --seed 2023098 
(FPCore (re im)
  :name "math.log/1 on complex, imaginary part"
  :precision binary64
  (atan2 im re))

Backtrace

hash-ref: no value found for key key: 'falseLC
(unnamed)/home/nightlies/herbie/using-ruler-nightlies/src/syntax/syntax.rkt2302
f336.../match/compiler.rkt54840
expand-parametric/home/nightlies/herbie/using-ruler-nightlies/src/syntax/sugar.rkt620
(unnamed)/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt2559
rule->egg-rules/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt2240
expand-rules/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt4880
egraph-run-rules/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt5090
(unnamed)/home/nightlies/herbie/using-ruler-nightlies/src/core/simplify.rkt583
with-egraph/home/nightlies/herbie/using-ruler-nightlies/src/core/egg-herbie.rkt3330
simplify-batch/home/nightlies/herbie/using-ruler-nightlies/src/core/simplify.rkt230
(unnamed)/usr/share/racket/collects/racket/contract/private/arrow-higher-order.rkt37933
get-swaps/home/nightlies/herbie/using-ruler-nightlies/src/symmetry.rkt60
connected-components/home/nightlies/herbie/using-ruler-nightlies/src/symmetry.rkt180
run-improve!/home/nightlies/herbie/using-ruler-nightlies/src/mainloop.rkt3200
run-herbie/home/nightlies/herbie/using-ruler-nightlies/src/sandbox.rkt570
(unnamed)/home/nightlies/herbie/using-ruler-nightlies/src/sandbox.rkt1336
(unnamed)/usr/share/racket/pkgs/profile-lib/main.rkt4010
profile-thunk/usr/share/racket/pkgs/profile-lib/main.rkt90
(unnamed)/usr/share/racket/collects/racket/engine.rkt4224