
(FPCore (a b c) :precision binary64 (let* ((t_0 (sqrt (- (* b b) (* (* 4.0 a) c))))) (if (>= b 0.0) (/ (* 2.0 c) (- (- b) t_0)) (/ (+ (- b) t_0) (* 2.0 a)))))
double code(double a, double b, double c) {
double t_0 = sqrt(((b * b) - ((4.0 * a) * c)));
double tmp;
if (b >= 0.0) {
tmp = (2.0 * c) / (-b - t_0);
} else {
tmp = (-b + t_0) / (2.0 * a);
}
return tmp;
}
real(8) function code(a, b, c)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8) :: t_0
real(8) :: tmp
t_0 = sqrt(((b * b) - ((4.0d0 * a) * c)))
if (b >= 0.0d0) then
tmp = (2.0d0 * c) / (-b - t_0)
else
tmp = (-b + t_0) / (2.0d0 * a)
end if
code = tmp
end function
public static double code(double a, double b, double c) {
double t_0 = Math.sqrt(((b * b) - ((4.0 * a) * c)));
double tmp;
if (b >= 0.0) {
tmp = (2.0 * c) / (-b - t_0);
} else {
tmp = (-b + t_0) / (2.0 * a);
}
return tmp;
}
def code(a, b, c): t_0 = math.sqrt(((b * b) - ((4.0 * a) * c))) tmp = 0 if b >= 0.0: tmp = (2.0 * c) / (-b - t_0) else: tmp = (-b + t_0) / (2.0 * a) return tmp
function code(a, b, c) t_0 = sqrt(Float64(Float64(b * b) - Float64(Float64(4.0 * a) * c))) tmp = 0.0 if (b >= 0.0) tmp = Float64(Float64(2.0 * c) / Float64(Float64(-b) - t_0)); else tmp = Float64(Float64(Float64(-b) + t_0) / Float64(2.0 * a)); end return tmp end
function tmp_2 = code(a, b, c) t_0 = sqrt(((b * b) - ((4.0 * a) * c))); tmp = 0.0; if (b >= 0.0) tmp = (2.0 * c) / (-b - t_0); else tmp = (-b + t_0) / (2.0 * a); end tmp_2 = tmp; end
code[a_, b_, c_] := Block[{t$95$0 = N[Sqrt[N[(N[(b * b), $MachinePrecision] - N[(N[(4.0 * a), $MachinePrecision] * c), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, If[GreaterEqual[b, 0.0], N[(N[(2.0 * c), $MachinePrecision] / N[((-b) - t$95$0), $MachinePrecision]), $MachinePrecision], N[(N[((-b) + t$95$0), $MachinePrecision] / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt{b \cdot b - \left(4 \cdot a\right) \cdot c}\\
\mathbf{if}\;b \geq 0:\\
\;\;\;\;\frac{2 \cdot c}{\left(-b\right) - t\_0}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left(-b\right) + t\_0}{2 \cdot a}\\
\end{array}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 6 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (a b c) :precision binary64 (let* ((t_0 (sqrt (- (* b b) (* (* 4.0 a) c))))) (if (>= b 0.0) (/ (* 2.0 c) (- (- b) t_0)) (/ (+ (- b) t_0) (* 2.0 a)))))
double code(double a, double b, double c) {
double t_0 = sqrt(((b * b) - ((4.0 * a) * c)));
double tmp;
if (b >= 0.0) {
tmp = (2.0 * c) / (-b - t_0);
} else {
tmp = (-b + t_0) / (2.0 * a);
}
return tmp;
}
real(8) function code(a, b, c)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8) :: t_0
real(8) :: tmp
t_0 = sqrt(((b * b) - ((4.0d0 * a) * c)))
if (b >= 0.0d0) then
tmp = (2.0d0 * c) / (-b - t_0)
else
tmp = (-b + t_0) / (2.0d0 * a)
end if
code = tmp
end function
public static double code(double a, double b, double c) {
double t_0 = Math.sqrt(((b * b) - ((4.0 * a) * c)));
double tmp;
if (b >= 0.0) {
tmp = (2.0 * c) / (-b - t_0);
} else {
tmp = (-b + t_0) / (2.0 * a);
}
return tmp;
}
def code(a, b, c): t_0 = math.sqrt(((b * b) - ((4.0 * a) * c))) tmp = 0 if b >= 0.0: tmp = (2.0 * c) / (-b - t_0) else: tmp = (-b + t_0) / (2.0 * a) return tmp
function code(a, b, c) t_0 = sqrt(Float64(Float64(b * b) - Float64(Float64(4.0 * a) * c))) tmp = 0.0 if (b >= 0.0) tmp = Float64(Float64(2.0 * c) / Float64(Float64(-b) - t_0)); else tmp = Float64(Float64(Float64(-b) + t_0) / Float64(2.0 * a)); end return tmp end
function tmp_2 = code(a, b, c) t_0 = sqrt(((b * b) - ((4.0 * a) * c))); tmp = 0.0; if (b >= 0.0) tmp = (2.0 * c) / (-b - t_0); else tmp = (-b + t_0) / (2.0 * a); end tmp_2 = tmp; end
code[a_, b_, c_] := Block[{t$95$0 = N[Sqrt[N[(N[(b * b), $MachinePrecision] - N[(N[(4.0 * a), $MachinePrecision] * c), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, If[GreaterEqual[b, 0.0], N[(N[(2.0 * c), $MachinePrecision] / N[((-b) - t$95$0), $MachinePrecision]), $MachinePrecision], N[(N[((-b) + t$95$0), $MachinePrecision] / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \sqrt{b \cdot b - \left(4 \cdot a\right) \cdot c}\\
\mathbf{if}\;b \geq 0:\\
\;\;\;\;\frac{2 \cdot c}{\left(-b\right) - t\_0}\\
\mathbf{else}:\\
\;\;\;\;\frac{\left(-b\right) + t\_0}{2 \cdot a}\\
\end{array}
\end{array}
(FPCore (a b c)
:precision binary64
(if (<= b -1.8e+93)
(if (>= b 0.0) (* (/ c 2.0) (/ -2.0 b)) (/ (* b -2.0) (* 2.0 a)))
(if (<= b 5.5e+92)
(if (>= b 0.0)
(* c (/ -2.0 (+ b (sqrt (+ (* b b) (* c (* a -4.0)))))))
(/ (- (sqrt (+ (* b b) (* a (* c -4.0)))) b) (* 2.0 a)))
(if (>= b 0.0)
(/
(* c -2.0)
(+
(* (* -2.0 a) (+ (/ c b) (* (/ (/ c b) (/ b c)) (/ a b))))
(* b 2.0)))
(/ (/ (* c (* -2.0 a)) b) (* 2.0 a))))))
double code(double a, double b, double c) {
double tmp_1;
if (b <= -1.8e+93) {
double tmp_2;
if (b >= 0.0) {
tmp_2 = (c / 2.0) * (-2.0 / b);
} else {
tmp_2 = (b * -2.0) / (2.0 * a);
}
tmp_1 = tmp_2;
} else if (b <= 5.5e+92) {
double tmp_3;
if (b >= 0.0) {
tmp_3 = c * (-2.0 / (b + sqrt(((b * b) + (c * (a * -4.0))))));
} else {
tmp_3 = (sqrt(((b * b) + (a * (c * -4.0)))) - b) / (2.0 * a);
}
tmp_1 = tmp_3;
} else if (b >= 0.0) {
tmp_1 = (c * -2.0) / (((-2.0 * a) * ((c / b) + (((c / b) / (b / c)) * (a / b)))) + (b * 2.0));
} else {
tmp_1 = ((c * (-2.0 * a)) / b) / (2.0 * a);
}
return tmp_1;
}
real(8) function code(a, b, c)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8) :: tmp
real(8) :: tmp_1
real(8) :: tmp_2
real(8) :: tmp_3
if (b <= (-1.8d+93)) then
if (b >= 0.0d0) then
tmp_2 = (c / 2.0d0) * ((-2.0d0) / b)
else
tmp_2 = (b * (-2.0d0)) / (2.0d0 * a)
end if
tmp_1 = tmp_2
else if (b <= 5.5d+92) then
if (b >= 0.0d0) then
tmp_3 = c * ((-2.0d0) / (b + sqrt(((b * b) + (c * (a * (-4.0d0)))))))
else
tmp_3 = (sqrt(((b * b) + (a * (c * (-4.0d0))))) - b) / (2.0d0 * a)
end if
tmp_1 = tmp_3
else if (b >= 0.0d0) then
tmp_1 = (c * (-2.0d0)) / ((((-2.0d0) * a) * ((c / b) + (((c / b) / (b / c)) * (a / b)))) + (b * 2.0d0))
else
tmp_1 = ((c * ((-2.0d0) * a)) / b) / (2.0d0 * a)
end if
code = tmp_1
end function
public static double code(double a, double b, double c) {
double tmp_1;
if (b <= -1.8e+93) {
double tmp_2;
if (b >= 0.0) {
tmp_2 = (c / 2.0) * (-2.0 / b);
} else {
tmp_2 = (b * -2.0) / (2.0 * a);
}
tmp_1 = tmp_2;
} else if (b <= 5.5e+92) {
double tmp_3;
if (b >= 0.0) {
tmp_3 = c * (-2.0 / (b + Math.sqrt(((b * b) + (c * (a * -4.0))))));
} else {
tmp_3 = (Math.sqrt(((b * b) + (a * (c * -4.0)))) - b) / (2.0 * a);
}
tmp_1 = tmp_3;
} else if (b >= 0.0) {
tmp_1 = (c * -2.0) / (((-2.0 * a) * ((c / b) + (((c / b) / (b / c)) * (a / b)))) + (b * 2.0));
} else {
tmp_1 = ((c * (-2.0 * a)) / b) / (2.0 * a);
}
return tmp_1;
}
def code(a, b, c): tmp_1 = 0 if b <= -1.8e+93: tmp_2 = 0 if b >= 0.0: tmp_2 = (c / 2.0) * (-2.0 / b) else: tmp_2 = (b * -2.0) / (2.0 * a) tmp_1 = tmp_2 elif b <= 5.5e+92: tmp_3 = 0 if b >= 0.0: tmp_3 = c * (-2.0 / (b + math.sqrt(((b * b) + (c * (a * -4.0)))))) else: tmp_3 = (math.sqrt(((b * b) + (a * (c * -4.0)))) - b) / (2.0 * a) tmp_1 = tmp_3 elif b >= 0.0: tmp_1 = (c * -2.0) / (((-2.0 * a) * ((c / b) + (((c / b) / (b / c)) * (a / b)))) + (b * 2.0)) else: tmp_1 = ((c * (-2.0 * a)) / b) / (2.0 * a) return tmp_1
function code(a, b, c) tmp_1 = 0.0 if (b <= -1.8e+93) tmp_2 = 0.0 if (b >= 0.0) tmp_2 = Float64(Float64(c / 2.0) * Float64(-2.0 / b)); else tmp_2 = Float64(Float64(b * -2.0) / Float64(2.0 * a)); end tmp_1 = tmp_2; elseif (b <= 5.5e+92) tmp_3 = 0.0 if (b >= 0.0) tmp_3 = Float64(c * Float64(-2.0 / Float64(b + sqrt(Float64(Float64(b * b) + Float64(c * Float64(a * -4.0))))))); else tmp_3 = Float64(Float64(sqrt(Float64(Float64(b * b) + Float64(a * Float64(c * -4.0)))) - b) / Float64(2.0 * a)); end tmp_1 = tmp_3; elseif (b >= 0.0) tmp_1 = Float64(Float64(c * -2.0) / Float64(Float64(Float64(-2.0 * a) * Float64(Float64(c / b) + Float64(Float64(Float64(c / b) / Float64(b / c)) * Float64(a / b)))) + Float64(b * 2.0))); else tmp_1 = Float64(Float64(Float64(c * Float64(-2.0 * a)) / b) / Float64(2.0 * a)); end return tmp_1 end
function tmp_5 = code(a, b, c) tmp_2 = 0.0; if (b <= -1.8e+93) tmp_3 = 0.0; if (b >= 0.0) tmp_3 = (c / 2.0) * (-2.0 / b); else tmp_3 = (b * -2.0) / (2.0 * a); end tmp_2 = tmp_3; elseif (b <= 5.5e+92) tmp_4 = 0.0; if (b >= 0.0) tmp_4 = c * (-2.0 / (b + sqrt(((b * b) + (c * (a * -4.0)))))); else tmp_4 = (sqrt(((b * b) + (a * (c * -4.0)))) - b) / (2.0 * a); end tmp_2 = tmp_4; elseif (b >= 0.0) tmp_2 = (c * -2.0) / (((-2.0 * a) * ((c / b) + (((c / b) / (b / c)) * (a / b)))) + (b * 2.0)); else tmp_2 = ((c * (-2.0 * a)) / b) / (2.0 * a); end tmp_5 = tmp_2; end
code[a_, b_, c_] := If[LessEqual[b, -1.8e+93], If[GreaterEqual[b, 0.0], N[(N[(c / 2.0), $MachinePrecision] * N[(-2.0 / b), $MachinePrecision]), $MachinePrecision], N[(N[(b * -2.0), $MachinePrecision] / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]], If[LessEqual[b, 5.5e+92], If[GreaterEqual[b, 0.0], N[(c * N[(-2.0 / N[(b + N[Sqrt[N[(N[(b * b), $MachinePrecision] + N[(c * N[(a * -4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[Sqrt[N[(N[(b * b), $MachinePrecision] + N[(a * N[(c * -4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - b), $MachinePrecision] / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]], If[GreaterEqual[b, 0.0], N[(N[(c * -2.0), $MachinePrecision] / N[(N[(N[(-2.0 * a), $MachinePrecision] * N[(N[(c / b), $MachinePrecision] + N[(N[(N[(c / b), $MachinePrecision] / N[(b / c), $MachinePrecision]), $MachinePrecision] * N[(a / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(b * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[(c * N[(-2.0 * a), $MachinePrecision]), $MachinePrecision] / b), $MachinePrecision] / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq -1.8 \cdot 10^{+93}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;b \geq 0:\\
\;\;\;\;\frac{c}{2} \cdot \frac{-2}{b}\\
\mathbf{else}:\\
\;\;\;\;\frac{b \cdot -2}{2 \cdot a}\\
\end{array}\\
\mathbf{elif}\;b \leq 5.5 \cdot 10^{+92}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;b \geq 0:\\
\;\;\;\;c \cdot \frac{-2}{b + \sqrt{b \cdot b + c \cdot \left(a \cdot -4\right)}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\sqrt{b \cdot b + a \cdot \left(c \cdot -4\right)} - b}{2 \cdot a}\\
\end{array}\\
\mathbf{elif}\;b \geq 0:\\
\;\;\;\;\frac{c \cdot -2}{\left(-2 \cdot a\right) \cdot \left(\frac{c}{b} + \frac{\frac{c}{b}}{\frac{b}{c}} \cdot \frac{a}{b}\right) + b \cdot 2}\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{c \cdot \left(-2 \cdot a\right)}{b}}{2 \cdot a}\\
\end{array}
\end{array}
if b < -1.8e93Initial program 55.4%
Simplified55.4%
Taylor expanded in b around inf
Simplified55.4%
Taylor expanded in b around -inf
*-commutativeN/A
*-lowering-*.f6498.0%
Simplified98.0%
count-2N/A
times-fracN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
/-lowering-/.f6498.0%
Applied egg-rr98.0%
if -1.8e93 < b < 5.50000000000000053e92Initial program 90.0%
Simplified90.0%
associate-/l*N/A
*-commutativeN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
+-lowering-+.f64N/A
sqrt-lowering-sqrt.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
*-commutativeN/A
associate-*l*N/A
*-lowering-*.f64N/A
*-lowering-*.f6490.0%
Applied egg-rr90.0%
if 5.50000000000000053e92 < b Initial program 49.4%
Simplified49.4%
Taylor expanded in a around 0
+-commutativeN/A
+-lowering-+.f64N/A
Simplified77.9%
associate-*r/N/A
associate-*r*N/A
times-fracN/A
frac-timesN/A
*-lowering-*.f64N/A
clear-numN/A
un-div-invN/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
/-lowering-/.f64N/A
/-lowering-/.f6494.7%
Applied egg-rr94.7%
Taylor expanded in b around inf
associate-*r/N/A
/-lowering-/.f64N/A
associate-*r*N/A
*-lowering-*.f64N/A
*-lowering-*.f6494.7%
Simplified94.7%
Final simplification92.6%
(FPCore (a b c)
:precision binary64
(let* ((t_0 (/ (* c -2.0) (+ b b))))
(if (<= b -9e-28)
(if (>= b 0.0) t_0 (- (/ c b) (/ b a)))
(if (<= b -5e-310)
(if (>= b 0.0)
(/
(* c -2.0)
(+
(* b 2.0)
(* (* -2.0 a) (+ (/ c b) (* (* c c) (/ a (* b (* b b))))))))
(/ (- (sqrt (* a (* c -4.0))) b) (* 2.0 a)))
(if (>= b 0.0) t_0 (/ c b))))))
double code(double a, double b, double c) {
double t_0 = (c * -2.0) / (b + b);
double tmp_1;
if (b <= -9e-28) {
double tmp_2;
if (b >= 0.0) {
tmp_2 = t_0;
} else {
tmp_2 = (c / b) - (b / a);
}
tmp_1 = tmp_2;
} else if (b <= -5e-310) {
double tmp_3;
if (b >= 0.0) {
tmp_3 = (c * -2.0) / ((b * 2.0) + ((-2.0 * a) * ((c / b) + ((c * c) * (a / (b * (b * b)))))));
} else {
tmp_3 = (sqrt((a * (c * -4.0))) - b) / (2.0 * a);
}
tmp_1 = tmp_3;
} else if (b >= 0.0) {
tmp_1 = t_0;
} else {
tmp_1 = c / b;
}
return tmp_1;
}
real(8) function code(a, b, c)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8) :: t_0
real(8) :: tmp
real(8) :: tmp_1
real(8) :: tmp_2
real(8) :: tmp_3
t_0 = (c * (-2.0d0)) / (b + b)
if (b <= (-9d-28)) then
if (b >= 0.0d0) then
tmp_2 = t_0
else
tmp_2 = (c / b) - (b / a)
end if
tmp_1 = tmp_2
else if (b <= (-5d-310)) then
if (b >= 0.0d0) then
tmp_3 = (c * (-2.0d0)) / ((b * 2.0d0) + (((-2.0d0) * a) * ((c / b) + ((c * c) * (a / (b * (b * b)))))))
else
tmp_3 = (sqrt((a * (c * (-4.0d0)))) - b) / (2.0d0 * a)
end if
tmp_1 = tmp_3
else if (b >= 0.0d0) then
tmp_1 = t_0
else
tmp_1 = c / b
end if
code = tmp_1
end function
public static double code(double a, double b, double c) {
double t_0 = (c * -2.0) / (b + b);
double tmp_1;
if (b <= -9e-28) {
double tmp_2;
if (b >= 0.0) {
tmp_2 = t_0;
} else {
tmp_2 = (c / b) - (b / a);
}
tmp_1 = tmp_2;
} else if (b <= -5e-310) {
double tmp_3;
if (b >= 0.0) {
tmp_3 = (c * -2.0) / ((b * 2.0) + ((-2.0 * a) * ((c / b) + ((c * c) * (a / (b * (b * b)))))));
} else {
tmp_3 = (Math.sqrt((a * (c * -4.0))) - b) / (2.0 * a);
}
tmp_1 = tmp_3;
} else if (b >= 0.0) {
tmp_1 = t_0;
} else {
tmp_1 = c / b;
}
return tmp_1;
}
def code(a, b, c): t_0 = (c * -2.0) / (b + b) tmp_1 = 0 if b <= -9e-28: tmp_2 = 0 if b >= 0.0: tmp_2 = t_0 else: tmp_2 = (c / b) - (b / a) tmp_1 = tmp_2 elif b <= -5e-310: tmp_3 = 0 if b >= 0.0: tmp_3 = (c * -2.0) / ((b * 2.0) + ((-2.0 * a) * ((c / b) + ((c * c) * (a / (b * (b * b))))))) else: tmp_3 = (math.sqrt((a * (c * -4.0))) - b) / (2.0 * a) tmp_1 = tmp_3 elif b >= 0.0: tmp_1 = t_0 else: tmp_1 = c / b return tmp_1
function code(a, b, c) t_0 = Float64(Float64(c * -2.0) / Float64(b + b)) tmp_1 = 0.0 if (b <= -9e-28) tmp_2 = 0.0 if (b >= 0.0) tmp_2 = t_0; else tmp_2 = Float64(Float64(c / b) - Float64(b / a)); end tmp_1 = tmp_2; elseif (b <= -5e-310) tmp_3 = 0.0 if (b >= 0.0) tmp_3 = Float64(Float64(c * -2.0) / Float64(Float64(b * 2.0) + Float64(Float64(-2.0 * a) * Float64(Float64(c / b) + Float64(Float64(c * c) * Float64(a / Float64(b * Float64(b * b)))))))); else tmp_3 = Float64(Float64(sqrt(Float64(a * Float64(c * -4.0))) - b) / Float64(2.0 * a)); end tmp_1 = tmp_3; elseif (b >= 0.0) tmp_1 = t_0; else tmp_1 = Float64(c / b); end return tmp_1 end
function tmp_5 = code(a, b, c) t_0 = (c * -2.0) / (b + b); tmp_2 = 0.0; if (b <= -9e-28) tmp_3 = 0.0; if (b >= 0.0) tmp_3 = t_0; else tmp_3 = (c / b) - (b / a); end tmp_2 = tmp_3; elseif (b <= -5e-310) tmp_4 = 0.0; if (b >= 0.0) tmp_4 = (c * -2.0) / ((b * 2.0) + ((-2.0 * a) * ((c / b) + ((c * c) * (a / (b * (b * b))))))); else tmp_4 = (sqrt((a * (c * -4.0))) - b) / (2.0 * a); end tmp_2 = tmp_4; elseif (b >= 0.0) tmp_2 = t_0; else tmp_2 = c / b; end tmp_5 = tmp_2; end
code[a_, b_, c_] := Block[{t$95$0 = N[(N[(c * -2.0), $MachinePrecision] / N[(b + b), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[b, -9e-28], If[GreaterEqual[b, 0.0], t$95$0, N[(N[(c / b), $MachinePrecision] - N[(b / a), $MachinePrecision]), $MachinePrecision]], If[LessEqual[b, -5e-310], If[GreaterEqual[b, 0.0], N[(N[(c * -2.0), $MachinePrecision] / N[(N[(b * 2.0), $MachinePrecision] + N[(N[(-2.0 * a), $MachinePrecision] * N[(N[(c / b), $MachinePrecision] + N[(N[(c * c), $MachinePrecision] * N[(a / N[(b * N[(b * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[Sqrt[N[(a * N[(c * -4.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - b), $MachinePrecision] / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]], If[GreaterEqual[b, 0.0], t$95$0, N[(c / b), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := \frac{c \cdot -2}{b + b}\\
\mathbf{if}\;b \leq -9 \cdot 10^{-28}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;b \geq 0:\\
\;\;\;\;t\_0\\
\mathbf{else}:\\
\;\;\;\;\frac{c}{b} - \frac{b}{a}\\
\end{array}\\
\mathbf{elif}\;b \leq -5 \cdot 10^{-310}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;b \geq 0:\\
\;\;\;\;\frac{c \cdot -2}{b \cdot 2 + \left(-2 \cdot a\right) \cdot \left(\frac{c}{b} + \left(c \cdot c\right) \cdot \frac{a}{b \cdot \left(b \cdot b\right)}\right)}\\
\mathbf{else}:\\
\;\;\;\;\frac{\sqrt{a \cdot \left(c \cdot -4\right)} - b}{2 \cdot a}\\
\end{array}\\
\mathbf{elif}\;b \geq 0:\\
\;\;\;\;t\_0\\
\mathbf{else}:\\
\;\;\;\;\frac{c}{b}\\
\end{array}
\end{array}
if b < -8.9999999999999996e-28Initial program 72.2%
Simplified72.2%
Taylor expanded in b around inf
Simplified72.2%
Taylor expanded in b around -inf
associate-*r*N/A
*-lowering-*.f64N/A
mul-1-negN/A
neg-sub0N/A
--lowering--.f64N/A
+-lowering-+.f64N/A
associate-*r/N/A
*-commutativeN/A
unpow2N/A
times-fracN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
/-lowering-/.f6487.0%
Simplified87.0%
Taylor expanded in c around 0
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
--lowering--.f64N/A
/-lowering-/.f64N/A
/-lowering-/.f6488.3%
Simplified88.3%
if -8.9999999999999996e-28 < b < -4.999999999999985e-310Initial program 86.2%
Simplified86.2%
Taylor expanded in a around 0
+-commutativeN/A
+-lowering-+.f64N/A
Simplified86.2%
Taylor expanded in b around 0
*-commutativeN/A
rem-square-sqrtN/A
unpow2N/A
associate-*r*N/A
*-lowering-*.f64N/A
unpow2N/A
rem-square-sqrtN/A
*-lowering-*.f6471.8%
Simplified71.8%
if -4.999999999999985e-310 < b Initial program 69.0%
Simplified69.0%
Taylor expanded in b around inf
Simplified70.9%
Taylor expanded in b around -inf
associate-*r*N/A
*-lowering-*.f64N/A
mul-1-negN/A
neg-sub0N/A
--lowering--.f64N/A
+-lowering-+.f64N/A
associate-*r/N/A
*-commutativeN/A
unpow2N/A
times-fracN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
/-lowering-/.f6470.9%
Simplified70.9%
Taylor expanded in b around 0
/-lowering-/.f6470.9%
Simplified70.9%
Final simplification76.5%
(FPCore (a b c)
:precision binary64
(if (<= b -9e-28)
(if (>= b 0.0) (/ (* c -2.0) (+ b b)) (- (/ c b) (/ b a)))
(if (>= b 0.0)
(/ (* c -2.0) (+ (* b 2.0) (* (* -2.0 a) (/ c b))))
(/ (- (sqrt (* a (* c -4.0))) b) (* 2.0 a)))))
double code(double a, double b, double c) {
double tmp_1;
if (b <= -9e-28) {
double tmp_2;
if (b >= 0.0) {
tmp_2 = (c * -2.0) / (b + b);
} else {
tmp_2 = (c / b) - (b / a);
}
tmp_1 = tmp_2;
} else if (b >= 0.0) {
tmp_1 = (c * -2.0) / ((b * 2.0) + ((-2.0 * a) * (c / b)));
} else {
tmp_1 = (sqrt((a * (c * -4.0))) - b) / (2.0 * a);
}
return tmp_1;
}
real(8) function code(a, b, c)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8) :: tmp
real(8) :: tmp_1
real(8) :: tmp_2
if (b <= (-9d-28)) then
if (b >= 0.0d0) then
tmp_2 = (c * (-2.0d0)) / (b + b)
else
tmp_2 = (c / b) - (b / a)
end if
tmp_1 = tmp_2
else if (b >= 0.0d0) then
tmp_1 = (c * (-2.0d0)) / ((b * 2.0d0) + (((-2.0d0) * a) * (c / b)))
else
tmp_1 = (sqrt((a * (c * (-4.0d0)))) - b) / (2.0d0 * a)
end if
code = tmp_1
end function
public static double code(double a, double b, double c) {
double tmp_1;
if (b <= -9e-28) {
double tmp_2;
if (b >= 0.0) {
tmp_2 = (c * -2.0) / (b + b);
} else {
tmp_2 = (c / b) - (b / a);
}
tmp_1 = tmp_2;
} else if (b >= 0.0) {
tmp_1 = (c * -2.0) / ((b * 2.0) + ((-2.0 * a) * (c / b)));
} else {
tmp_1 = (Math.sqrt((a * (c * -4.0))) - b) / (2.0 * a);
}
return tmp_1;
}
def code(a, b, c): tmp_1 = 0 if b <= -9e-28: tmp_2 = 0 if b >= 0.0: tmp_2 = (c * -2.0) / (b + b) else: tmp_2 = (c / b) - (b / a) tmp_1 = tmp_2 elif b >= 0.0: tmp_1 = (c * -2.0) / ((b * 2.0) + ((-2.0 * a) * (c / b))) else: tmp_1 = (math.sqrt((a * (c * -4.0))) - b) / (2.0 * a) return tmp_1
function code(a, b, c) tmp_1 = 0.0 if (b <= -9e-28) tmp_2 = 0.0 if (b >= 0.0) tmp_2 = Float64(Float64(c * -2.0) / Float64(b + b)); else tmp_2 = Float64(Float64(c / b) - Float64(b / a)); end tmp_1 = tmp_2; elseif (b >= 0.0) tmp_1 = Float64(Float64(c * -2.0) / Float64(Float64(b * 2.0) + Float64(Float64(-2.0 * a) * Float64(c / b)))); else tmp_1 = Float64(Float64(sqrt(Float64(a * Float64(c * -4.0))) - b) / Float64(2.0 * a)); end return tmp_1 end
function tmp_4 = code(a, b, c) tmp_2 = 0.0; if (b <= -9e-28) tmp_3 = 0.0; if (b >= 0.0) tmp_3 = (c * -2.0) / (b + b); else tmp_3 = (c / b) - (b / a); end tmp_2 = tmp_3; elseif (b >= 0.0) tmp_2 = (c * -2.0) / ((b * 2.0) + ((-2.0 * a) * (c / b))); else tmp_2 = (sqrt((a * (c * -4.0))) - b) / (2.0 * a); end tmp_4 = tmp_2; end
code[a_, b_, c_] := If[LessEqual[b, -9e-28], If[GreaterEqual[b, 0.0], N[(N[(c * -2.0), $MachinePrecision] / N[(b + b), $MachinePrecision]), $MachinePrecision], N[(N[(c / b), $MachinePrecision] - N[(b / a), $MachinePrecision]), $MachinePrecision]], If[GreaterEqual[b, 0.0], N[(N[(c * -2.0), $MachinePrecision] / N[(N[(b * 2.0), $MachinePrecision] + N[(N[(-2.0 * a), $MachinePrecision] * N[(c / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(N[Sqrt[N[(a * N[(c * -4.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] - b), $MachinePrecision] / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \leq -9 \cdot 10^{-28}:\\
\;\;\;\;\begin{array}{l}
\mathbf{if}\;b \geq 0:\\
\;\;\;\;\frac{c \cdot -2}{b + b}\\
\mathbf{else}:\\
\;\;\;\;\frac{c}{b} - \frac{b}{a}\\
\end{array}\\
\mathbf{elif}\;b \geq 0:\\
\;\;\;\;\frac{c \cdot -2}{b \cdot 2 + \left(-2 \cdot a\right) \cdot \frac{c}{b}}\\
\mathbf{else}:\\
\;\;\;\;\frac{\sqrt{a \cdot \left(c \cdot -4\right)} - b}{2 \cdot a}\\
\end{array}
\end{array}
if b < -8.9999999999999996e-28Initial program 72.2%
Simplified72.2%
Taylor expanded in b around inf
Simplified72.2%
Taylor expanded in b around -inf
associate-*r*N/A
*-lowering-*.f64N/A
mul-1-negN/A
neg-sub0N/A
--lowering--.f64N/A
+-lowering-+.f64N/A
associate-*r/N/A
*-commutativeN/A
unpow2N/A
times-fracN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
/-lowering-/.f6487.0%
Simplified87.0%
Taylor expanded in c around 0
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
--lowering--.f64N/A
/-lowering-/.f64N/A
/-lowering-/.f6488.3%
Simplified88.3%
if -8.9999999999999996e-28 < b Initial program 74.3%
Simplified74.3%
Taylor expanded in a around 0
+-commutativeN/A
+-lowering-+.f64N/A
Simplified65.7%
Taylor expanded in b around 0
*-commutativeN/A
rem-square-sqrtN/A
unpow2N/A
associate-*r*N/A
*-lowering-*.f64N/A
unpow2N/A
rem-square-sqrtN/A
*-lowering-*.f6461.3%
Simplified61.3%
Taylor expanded in c around 0
/-lowering-/.f6471.4%
Simplified71.4%
Final simplification76.6%
(FPCore (a b c) :precision binary64 (if (>= b 0.0) (/ (* c -2.0) (+ b b)) (- (/ c b) (/ b a))))
double code(double a, double b, double c) {
double tmp;
if (b >= 0.0) {
tmp = (c * -2.0) / (b + b);
} else {
tmp = (c / b) - (b / a);
}
return tmp;
}
real(8) function code(a, b, c)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8) :: tmp
if (b >= 0.0d0) then
tmp = (c * (-2.0d0)) / (b + b)
else
tmp = (c / b) - (b / a)
end if
code = tmp
end function
public static double code(double a, double b, double c) {
double tmp;
if (b >= 0.0) {
tmp = (c * -2.0) / (b + b);
} else {
tmp = (c / b) - (b / a);
}
return tmp;
}
def code(a, b, c): tmp = 0 if b >= 0.0: tmp = (c * -2.0) / (b + b) else: tmp = (c / b) - (b / a) return tmp
function code(a, b, c) tmp = 0.0 if (b >= 0.0) tmp = Float64(Float64(c * -2.0) / Float64(b + b)); else tmp = Float64(Float64(c / b) - Float64(b / a)); end return tmp end
function tmp_2 = code(a, b, c) tmp = 0.0; if (b >= 0.0) tmp = (c * -2.0) / (b + b); else tmp = (c / b) - (b / a); end tmp_2 = tmp; end
code[a_, b_, c_] := If[GreaterEqual[b, 0.0], N[(N[(c * -2.0), $MachinePrecision] / N[(b + b), $MachinePrecision]), $MachinePrecision], N[(N[(c / b), $MachinePrecision] - N[(b / a), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \geq 0:\\
\;\;\;\;\frac{c \cdot -2}{b + b}\\
\mathbf{else}:\\
\;\;\;\;\frac{c}{b} - \frac{b}{a}\\
\end{array}
\end{array}
Initial program 73.7%
Simplified73.7%
Taylor expanded in b around inf
Simplified74.6%
Taylor expanded in b around -inf
associate-*r*N/A
*-lowering-*.f64N/A
mul-1-negN/A
neg-sub0N/A
--lowering--.f64N/A
+-lowering-+.f64N/A
associate-*r/N/A
*-commutativeN/A
unpow2N/A
times-fracN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
/-lowering-/.f6465.3%
Simplified65.3%
Taylor expanded in c around 0
+-commutativeN/A
mul-1-negN/A
unsub-negN/A
--lowering--.f64N/A
/-lowering-/.f64N/A
/-lowering-/.f6465.8%
Simplified65.8%
(FPCore (a b c) :precision binary64 (if (>= b 0.0) (/ (* c -2.0) (+ b b)) (* -2.0 (/ b (* 2.0 a)))))
double code(double a, double b, double c) {
double tmp;
if (b >= 0.0) {
tmp = (c * -2.0) / (b + b);
} else {
tmp = -2.0 * (b / (2.0 * a));
}
return tmp;
}
real(8) function code(a, b, c)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8) :: tmp
if (b >= 0.0d0) then
tmp = (c * (-2.0d0)) / (b + b)
else
tmp = (-2.0d0) * (b / (2.0d0 * a))
end if
code = tmp
end function
public static double code(double a, double b, double c) {
double tmp;
if (b >= 0.0) {
tmp = (c * -2.0) / (b + b);
} else {
tmp = -2.0 * (b / (2.0 * a));
}
return tmp;
}
def code(a, b, c): tmp = 0 if b >= 0.0: tmp = (c * -2.0) / (b + b) else: tmp = -2.0 * (b / (2.0 * a)) return tmp
function code(a, b, c) tmp = 0.0 if (b >= 0.0) tmp = Float64(Float64(c * -2.0) / Float64(b + b)); else tmp = Float64(-2.0 * Float64(b / Float64(2.0 * a))); end return tmp end
function tmp_2 = code(a, b, c) tmp = 0.0; if (b >= 0.0) tmp = (c * -2.0) / (b + b); else tmp = -2.0 * (b / (2.0 * a)); end tmp_2 = tmp; end
code[a_, b_, c_] := If[GreaterEqual[b, 0.0], N[(N[(c * -2.0), $MachinePrecision] / N[(b + b), $MachinePrecision]), $MachinePrecision], N[(-2.0 * N[(b / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \geq 0:\\
\;\;\;\;\frac{c \cdot -2}{b + b}\\
\mathbf{else}:\\
\;\;\;\;-2 \cdot \frac{b}{2 \cdot a}\\
\end{array}
\end{array}
Initial program 73.7%
Simplified73.7%
Taylor expanded in b around inf
Simplified74.6%
Taylor expanded in b around -inf
*-commutativeN/A
*-lowering-*.f6465.5%
Simplified65.5%
*-commutativeN/A
associate-/l*N/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
*-commutativeN/A
*-lowering-*.f6465.5%
Applied egg-rr65.5%
Final simplification65.5%
(FPCore (a b c) :precision binary64 (if (>= b 0.0) (* (/ c 2.0) (/ -2.0 b)) (/ (* b -2.0) (* 2.0 a))))
double code(double a, double b, double c) {
double tmp;
if (b >= 0.0) {
tmp = (c / 2.0) * (-2.0 / b);
} else {
tmp = (b * -2.0) / (2.0 * a);
}
return tmp;
}
real(8) function code(a, b, c)
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8) :: tmp
if (b >= 0.0d0) then
tmp = (c / 2.0d0) * ((-2.0d0) / b)
else
tmp = (b * (-2.0d0)) / (2.0d0 * a)
end if
code = tmp
end function
public static double code(double a, double b, double c) {
double tmp;
if (b >= 0.0) {
tmp = (c / 2.0) * (-2.0 / b);
} else {
tmp = (b * -2.0) / (2.0 * a);
}
return tmp;
}
def code(a, b, c): tmp = 0 if b >= 0.0: tmp = (c / 2.0) * (-2.0 / b) else: tmp = (b * -2.0) / (2.0 * a) return tmp
function code(a, b, c) tmp = 0.0 if (b >= 0.0) tmp = Float64(Float64(c / 2.0) * Float64(-2.0 / b)); else tmp = Float64(Float64(b * -2.0) / Float64(2.0 * a)); end return tmp end
function tmp_2 = code(a, b, c) tmp = 0.0; if (b >= 0.0) tmp = (c / 2.0) * (-2.0 / b); else tmp = (b * -2.0) / (2.0 * a); end tmp_2 = tmp; end
code[a_, b_, c_] := If[GreaterEqual[b, 0.0], N[(N[(c / 2.0), $MachinePrecision] * N[(-2.0 / b), $MachinePrecision]), $MachinePrecision], N[(N[(b * -2.0), $MachinePrecision] / N[(2.0 * a), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;b \geq 0:\\
\;\;\;\;\frac{c}{2} \cdot \frac{-2}{b}\\
\mathbf{else}:\\
\;\;\;\;\frac{b \cdot -2}{2 \cdot a}\\
\end{array}
\end{array}
Initial program 73.7%
Simplified73.7%
Taylor expanded in b around inf
Simplified74.6%
Taylor expanded in b around -inf
*-commutativeN/A
*-lowering-*.f6465.5%
Simplified65.5%
count-2N/A
times-fracN/A
*-lowering-*.f64N/A
/-lowering-/.f64N/A
/-lowering-/.f6465.4%
Applied egg-rr65.4%
herbie shell --seed 2024191
(FPCore (a b c)
:name "jeff quadratic root 2"
:precision binary64
(if (>= b 0.0) (/ (* 2.0 c) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))) (/ (+ (- b) (sqrt (- (* b b) (* (* 4.0 a) c)))) (* 2.0 a))))