Exception for Statistics.Distribution.Poisson.Internal:probability from math-functions-0.1.5.2

• 58.6% of points produce a very large (infinite) output. You may want to add a precondition.

Specification

Math

\[\begin{array}{l} \\ e^{\left(x + y \cdot \log y\right) - z} \end{array} \]

FPCore

(FPCore (x y z) :precision binary64 (exp (- (+ x (* y (log y))) z)))

C

double code(double x, double y, double z) {
	return exp(((x + (y * log(y))) - z));
}

Fortran

real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = exp(((x + (y * log(y))) - z))
end function

Java

public static double code(double x, double y, double z) {
	return Math.exp(((x + (y * Math.log(y))) - z));
}

Python

def code(x, y, z):
	return math.exp(((x + (y * math.log(y))) - z))

Julia

function code(x, y, z)
	return exp(Float64(Float64(x + Float64(y * log(y))) - z))
end

MATLAB

function tmp = code(x, y, z)
	tmp = exp(((x + (y * log(y))) - z));
end

Wolfram

code[x_, y_, z_] := N[Exp[N[(N[(x + N[(y * N[Log[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - z), $MachinePrecision]], $MachinePrecision]

Reproduce

herbie shell --seed 2024238 
(FPCore (x y z)
  :name "Statistics.Distribution.Poisson.Internal:probability from math-functions-0.1.5.2"
  :precision binary64

  :alt
  (! :herbie-platform default (exp (+ (- x z) (* (log y) y))))

  (exp (- (+ x (* y (log y))) z)))

Please file a bug report with this information.

Backtrace

flexp2: contract violation expected: flonum? given: 554.1116449184987+3.141592653589793i in: the 1st argument of (-> flonum? any) contract from: <pkgs>/math-lib/math/private/flonum/flonum-exp.rkt blaming: <pkgs>/herbie/core/logspace.rkt (assuming the contract is correct) at: <pkgs>/math-lib/math/private/flonum/flonum-exp.rkt:99:11		L	C
raise-blame-error	/usr/local/racket/collects/racket/contract/private/blame.rkt	346	0
(unnamed)	/usr/local/racket/collects/racket/contract/private/arrow-higher-order.rkt	379	33
log+	/home/nightlies/herbie/bhargav-log-space/src/core/logspace.rkt	52	0
compiled-prog	/home/nightlies/herbie/bhargav-log-space/src/core/compiler.rkt	26	2
predict-errors	/home/nightlies/herbie/bhargav-log-space/src/core/explain.rkt	88	0
explain	/home/nightlies/herbie/bhargav-log-space/src/core/explain.rkt	614	0
explain!	/home/nightlies/herbie/bhargav-log-space/src/core/mainloop.rkt	321	0
run-improve!	/home/nightlies/herbie/bhargav-log-space/src/core/mainloop.rkt	43	0
get-alternatives/report	/home/nightlies/herbie/bhargav-log-space/src/api/sandbox.rkt	184	0
(unnamed)	/home/nightlies/herbie/bhargav-log-space/src/api/sandbox.rkt	280	6
(unnamed)	/usr/local/racket/share/pkgs/profile-lib/main.rkt	40	10
profile-thunk	/usr/local/racket/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/usr/local/racket/collects/racket/engine.rkt	42	24