(FPCore (alpha beta) :precision binary64 (/ (/ (/ (+ (+ (+ alpha beta) (* beta alpha)) 1.0) (+ (+ alpha beta) (* 2.0 1.0))) (+ (+ alpha beta) (* 2.0 1.0))) (+ (+ (+ alpha beta) (* 2.0 1.0)) 1.0)))
(FPCore (alpha beta)
:precision binary64
(let* ((t_0 (+ alpha (+ beta 2.0))))
(*
(sqrt (pow (/ (+ beta (+ alpha 3.0)) (+ alpha 1.0)) -2.0))
(/ (/ (+ beta 1.0) t_0) t_0))))double code(double alpha, double beta) {
return (((((alpha + beta) + (beta * alpha)) + 1.0) / ((alpha + beta) + (2.0 * 1.0))) / ((alpha + beta) + (2.0 * 1.0))) / (((alpha + beta) + (2.0 * 1.0)) + 1.0);
}
double code(double alpha, double beta) {
double t_0 = alpha + (beta + 2.0);
return sqrt(pow(((beta + (alpha + 3.0)) / (alpha + 1.0)), -2.0)) * (((beta + 1.0) / t_0) / t_0);
}
real(8) function code(alpha, beta)
real(8), intent (in) :: alpha
real(8), intent (in) :: beta
code = (((((alpha + beta) + (beta * alpha)) + 1.0d0) / ((alpha + beta) + (2.0d0 * 1.0d0))) / ((alpha + beta) + (2.0d0 * 1.0d0))) / (((alpha + beta) + (2.0d0 * 1.0d0)) + 1.0d0)
end function
real(8) function code(alpha, beta)
real(8), intent (in) :: alpha
real(8), intent (in) :: beta
real(8) :: t_0
t_0 = alpha + (beta + 2.0d0)
code = sqrt((((beta + (alpha + 3.0d0)) / (alpha + 1.0d0)) ** (-2.0d0))) * (((beta + 1.0d0) / t_0) / t_0)
end function
public static double code(double alpha, double beta) {
return (((((alpha + beta) + (beta * alpha)) + 1.0) / ((alpha + beta) + (2.0 * 1.0))) / ((alpha + beta) + (2.0 * 1.0))) / (((alpha + beta) + (2.0 * 1.0)) + 1.0);
}
public static double code(double alpha, double beta) {
double t_0 = alpha + (beta + 2.0);
return Math.sqrt(Math.pow(((beta + (alpha + 3.0)) / (alpha + 1.0)), -2.0)) * (((beta + 1.0) / t_0) / t_0);
}
def code(alpha, beta): return (((((alpha + beta) + (beta * alpha)) + 1.0) / ((alpha + beta) + (2.0 * 1.0))) / ((alpha + beta) + (2.0 * 1.0))) / (((alpha + beta) + (2.0 * 1.0)) + 1.0)
def code(alpha, beta): t_0 = alpha + (beta + 2.0) return math.sqrt(math.pow(((beta + (alpha + 3.0)) / (alpha + 1.0)), -2.0)) * (((beta + 1.0) / t_0) / t_0)
function code(alpha, beta) return Float64(Float64(Float64(Float64(Float64(Float64(alpha + beta) + Float64(beta * alpha)) + 1.0) / Float64(Float64(alpha + beta) + Float64(2.0 * 1.0))) / Float64(Float64(alpha + beta) + Float64(2.0 * 1.0))) / Float64(Float64(Float64(alpha + beta) + Float64(2.0 * 1.0)) + 1.0)) end
function code(alpha, beta) t_0 = Float64(alpha + Float64(beta + 2.0)) return Float64(sqrt((Float64(Float64(beta + Float64(alpha + 3.0)) / Float64(alpha + 1.0)) ^ -2.0)) * Float64(Float64(Float64(beta + 1.0) / t_0) / t_0)) end
function tmp = code(alpha, beta) tmp = (((((alpha + beta) + (beta * alpha)) + 1.0) / ((alpha + beta) + (2.0 * 1.0))) / ((alpha + beta) + (2.0 * 1.0))) / (((alpha + beta) + (2.0 * 1.0)) + 1.0); end
function tmp = code(alpha, beta) t_0 = alpha + (beta + 2.0); tmp = sqrt((((beta + (alpha + 3.0)) / (alpha + 1.0)) ^ -2.0)) * (((beta + 1.0) / t_0) / t_0); end
code[alpha_, beta_] := N[(N[(N[(N[(N[(N[(alpha + beta), $MachinePrecision] + N[(beta * alpha), $MachinePrecision]), $MachinePrecision] + 1.0), $MachinePrecision] / N[(N[(alpha + beta), $MachinePrecision] + N[(2.0 * 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(alpha + beta), $MachinePrecision] + N[(2.0 * 1.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] / N[(N[(N[(alpha + beta), $MachinePrecision] + N[(2.0 * 1.0), $MachinePrecision]), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]
code[alpha_, beta_] := Block[{t$95$0 = N[(alpha + N[(beta + 2.0), $MachinePrecision]), $MachinePrecision]}, N[(N[Sqrt[N[Power[N[(N[(beta + N[(alpha + 3.0), $MachinePrecision]), $MachinePrecision] / N[(alpha + 1.0), $MachinePrecision]), $MachinePrecision], -2.0], $MachinePrecision]], $MachinePrecision] * N[(N[(N[(beta + 1.0), $MachinePrecision] / t$95$0), $MachinePrecision] / t$95$0), $MachinePrecision]), $MachinePrecision]]
\frac{\frac{\frac{\left(\left(\alpha + \beta\right) + \beta \cdot \alpha\right) + 1}{\left(\alpha + \beta\right) + 2 \cdot 1}}{\left(\alpha + \beta\right) + 2 \cdot 1}}{\left(\left(\alpha + \beta\right) + 2 \cdot 1\right) + 1}
\begin{array}{l}
t_0 := \alpha + \left(\beta + 2\right)\\
\sqrt{{\left(\frac{\beta + \left(\alpha + 3\right)}{\alpha + 1}\right)}^{-2}} \cdot \frac{\frac{\beta + 1}{t_0}}{t_0}
\end{array}



Bits error versus alpha



Bits error versus beta
Results
Initial program 3.6
Simplified2.2
Applied egg-rr0.3
Applied egg-rr0.1
Applied egg-rr0.1
Final simplification0.1
herbie shell --seed 2022165
(FPCore (alpha beta)
:name "Octave 3.8, jcobi/3"
:precision binary64
:pre (and (> alpha -1.0) (> beta -1.0))
(/ (/ (/ (+ (+ (+ alpha beta) (* beta alpha)) 1.0) (+ (+ alpha beta) (* 2.0 1.0))) (+ (+ alpha beta) (* 2.0 1.0))) (+ (+ (+ alpha beta) (* 2.0 1.0)) 1.0)))