
(FPCore (x eps) :precision binary64 (- (tan (+ x eps)) (tan x)))
double code(double x, double eps) {
return tan((x + eps)) - tan(x);
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = tan((x + eps)) - tan(x)
end function
public static double code(double x, double eps) {
return Math.tan((x + eps)) - Math.tan(x);
}
def code(x, eps): return math.tan((x + eps)) - math.tan(x)
function code(x, eps) return Float64(tan(Float64(x + eps)) - tan(x)) end
function tmp = code(x, eps) tmp = tan((x + eps)) - tan(x); end
code[x_, eps_] := N[(N[Tan[N[(x + eps), $MachinePrecision]], $MachinePrecision] - N[Tan[x], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\tan \left(x + \varepsilon\right) - \tan x
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 14 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x eps) :precision binary64 (- (tan (+ x eps)) (tan x)))
double code(double x, double eps) {
return tan((x + eps)) - tan(x);
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = tan((x + eps)) - tan(x)
end function
public static double code(double x, double eps) {
return Math.tan((x + eps)) - Math.tan(x);
}
def code(x, eps): return math.tan((x + eps)) - math.tan(x)
function code(x, eps) return Float64(tan(Float64(x + eps)) - tan(x)) end
function tmp = code(x, eps) tmp = tan((x + eps)) - tan(x); end
code[x_, eps_] := N[(N[Tan[N[(x + eps), $MachinePrecision]], $MachinePrecision] - N[Tan[x], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\tan \left(x + \varepsilon\right) - \tan x
\end{array}
(FPCore (x eps)
:precision binary64
(let* ((t_0 (pow (sin x) 2.0))
(t_1 (pow (cos x) 2.0))
(t_2 (/ t_0 t_1))
(t_3 (+ 1.0 t_2)))
(*
eps
(+
1.0
(+
t_2
(*
eps
(+
(* (/ (sin x) (cos x)) t_3)
(*
eps
(-
(-
(- (* t_2 t_3) 0.16666666666666666)
(/ (* t_0 0.16666666666666666) t_1))
(+ -0.5 (/ (* t_0 -0.5) t_1)))))))))))
double code(double x, double eps) {
double t_0 = pow(sin(x), 2.0);
double t_1 = pow(cos(x), 2.0);
double t_2 = t_0 / t_1;
double t_3 = 1.0 + t_2;
return eps * (1.0 + (t_2 + (eps * (((sin(x) / cos(x)) * t_3) + (eps * ((((t_2 * t_3) - 0.16666666666666666) - ((t_0 * 0.16666666666666666) / t_1)) - (-0.5 + ((t_0 * -0.5) / t_1))))))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
real(8) :: t_0
real(8) :: t_1
real(8) :: t_2
real(8) :: t_3
t_0 = sin(x) ** 2.0d0
t_1 = cos(x) ** 2.0d0
t_2 = t_0 / t_1
t_3 = 1.0d0 + t_2
code = eps * (1.0d0 + (t_2 + (eps * (((sin(x) / cos(x)) * t_3) + (eps * ((((t_2 * t_3) - 0.16666666666666666d0) - ((t_0 * 0.16666666666666666d0) / t_1)) - ((-0.5d0) + ((t_0 * (-0.5d0)) / t_1))))))))
end function
public static double code(double x, double eps) {
double t_0 = Math.pow(Math.sin(x), 2.0);
double t_1 = Math.pow(Math.cos(x), 2.0);
double t_2 = t_0 / t_1;
double t_3 = 1.0 + t_2;
return eps * (1.0 + (t_2 + (eps * (((Math.sin(x) / Math.cos(x)) * t_3) + (eps * ((((t_2 * t_3) - 0.16666666666666666) - ((t_0 * 0.16666666666666666) / t_1)) - (-0.5 + ((t_0 * -0.5) / t_1))))))));
}
def code(x, eps): t_0 = math.pow(math.sin(x), 2.0) t_1 = math.pow(math.cos(x), 2.0) t_2 = t_0 / t_1 t_3 = 1.0 + t_2 return eps * (1.0 + (t_2 + (eps * (((math.sin(x) / math.cos(x)) * t_3) + (eps * ((((t_2 * t_3) - 0.16666666666666666) - ((t_0 * 0.16666666666666666) / t_1)) - (-0.5 + ((t_0 * -0.5) / t_1))))))))
function code(x, eps) t_0 = sin(x) ^ 2.0 t_1 = cos(x) ^ 2.0 t_2 = Float64(t_0 / t_1) t_3 = Float64(1.0 + t_2) return Float64(eps * Float64(1.0 + Float64(t_2 + Float64(eps * Float64(Float64(Float64(sin(x) / cos(x)) * t_3) + Float64(eps * Float64(Float64(Float64(Float64(t_2 * t_3) - 0.16666666666666666) - Float64(Float64(t_0 * 0.16666666666666666) / t_1)) - Float64(-0.5 + Float64(Float64(t_0 * -0.5) / t_1))))))))) end
function tmp = code(x, eps) t_0 = sin(x) ^ 2.0; t_1 = cos(x) ^ 2.0; t_2 = t_0 / t_1; t_3 = 1.0 + t_2; tmp = eps * (1.0 + (t_2 + (eps * (((sin(x) / cos(x)) * t_3) + (eps * ((((t_2 * t_3) - 0.16666666666666666) - ((t_0 * 0.16666666666666666) / t_1)) - (-0.5 + ((t_0 * -0.5) / t_1)))))))); end
code[x_, eps_] := Block[{t$95$0 = N[Power[N[Sin[x], $MachinePrecision], 2.0], $MachinePrecision]}, Block[{t$95$1 = N[Power[N[Cos[x], $MachinePrecision], 2.0], $MachinePrecision]}, Block[{t$95$2 = N[(t$95$0 / t$95$1), $MachinePrecision]}, Block[{t$95$3 = N[(1.0 + t$95$2), $MachinePrecision]}, N[(eps * N[(1.0 + N[(t$95$2 + N[(eps * N[(N[(N[(N[Sin[x], $MachinePrecision] / N[Cos[x], $MachinePrecision]), $MachinePrecision] * t$95$3), $MachinePrecision] + N[(eps * N[(N[(N[(N[(t$95$2 * t$95$3), $MachinePrecision] - 0.16666666666666666), $MachinePrecision] - N[(N[(t$95$0 * 0.16666666666666666), $MachinePrecision] / t$95$1), $MachinePrecision]), $MachinePrecision] - N[(-0.5 + N[(N[(t$95$0 * -0.5), $MachinePrecision] / t$95$1), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := {\sin x}^{2}\\
t_1 := {\cos x}^{2}\\
t_2 := \frac{t\_0}{t\_1}\\
t_3 := 1 + t\_2\\
\varepsilon \cdot \left(1 + \left(t\_2 + \varepsilon \cdot \left(\frac{\sin x}{\cos x} \cdot t\_3 + \varepsilon \cdot \left(\left(\left(t\_2 \cdot t\_3 - 0.16666666666666666\right) - \frac{t\_0 \cdot 0.16666666666666666}{t\_1}\right) - \left(-0.5 + \frac{t\_0 \cdot -0.5}{t\_1}\right)\right)\right)\right)\right)
\end{array}
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
Simplified99.5%
Final simplification99.5%
(FPCore (x eps)
:precision binary64
(*
eps
(+
(+ 1.0 (pow (tan x) 2.0))
(*
eps
(+
(tan x)
(-
(pow (tan x) 3.0)
(* eps (+ (* (* x x) -1.3333333333333333) -0.3333333333333333))))))))
double code(double x, double eps) {
return eps * ((1.0 + pow(tan(x), 2.0)) + (eps * (tan(x) + (pow(tan(x), 3.0) - (eps * (((x * x) * -1.3333333333333333) + -0.3333333333333333))))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps * ((1.0d0 + (tan(x) ** 2.0d0)) + (eps * (tan(x) + ((tan(x) ** 3.0d0) - (eps * (((x * x) * (-1.3333333333333333d0)) + (-0.3333333333333333d0)))))))
end function
public static double code(double x, double eps) {
return eps * ((1.0 + Math.pow(Math.tan(x), 2.0)) + (eps * (Math.tan(x) + (Math.pow(Math.tan(x), 3.0) - (eps * (((x * x) * -1.3333333333333333) + -0.3333333333333333))))));
}
def code(x, eps): return eps * ((1.0 + math.pow(math.tan(x), 2.0)) + (eps * (math.tan(x) + (math.pow(math.tan(x), 3.0) - (eps * (((x * x) * -1.3333333333333333) + -0.3333333333333333))))))
function code(x, eps) return Float64(eps * Float64(Float64(1.0 + (tan(x) ^ 2.0)) + Float64(eps * Float64(tan(x) + Float64((tan(x) ^ 3.0) - Float64(eps * Float64(Float64(Float64(x * x) * -1.3333333333333333) + -0.3333333333333333))))))) end
function tmp = code(x, eps) tmp = eps * ((1.0 + (tan(x) ^ 2.0)) + (eps * (tan(x) + ((tan(x) ^ 3.0) - (eps * (((x * x) * -1.3333333333333333) + -0.3333333333333333)))))); end
code[x_, eps_] := N[(eps * N[(N[(1.0 + N[Power[N[Tan[x], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] + N[(eps * N[(N[Tan[x], $MachinePrecision] + N[(N[Power[N[Tan[x], $MachinePrecision], 3.0], $MachinePrecision] - N[(eps * N[(N[(N[(x * x), $MachinePrecision] * -1.3333333333333333), $MachinePrecision] + -0.3333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon \cdot \left(\left(1 + {\tan x}^{2}\right) + \varepsilon \cdot \left(\tan x + \left({\tan x}^{3} - \varepsilon \cdot \left(\left(x \cdot x\right) \cdot -1.3333333333333333 + -0.3333333333333333\right)\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
Simplified99.5%
Taylor expanded in x around 0
sub-negN/A
metadata-evalN/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6499.4%
Simplified99.4%
+-commutativeN/A
associate-+r+N/A
+-lowering-+.f64N/A
Applied egg-rr99.4%
(FPCore (x eps) :precision binary64 (* eps (+ (+ 1.0 (pow (tan x) 2.0)) (* eps (+ (tan x) (- (pow (tan x) 3.0) (* eps -0.3333333333333333)))))))
double code(double x, double eps) {
return eps * ((1.0 + pow(tan(x), 2.0)) + (eps * (tan(x) + (pow(tan(x), 3.0) - (eps * -0.3333333333333333)))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps * ((1.0d0 + (tan(x) ** 2.0d0)) + (eps * (tan(x) + ((tan(x) ** 3.0d0) - (eps * (-0.3333333333333333d0))))))
end function
public static double code(double x, double eps) {
return eps * ((1.0 + Math.pow(Math.tan(x), 2.0)) + (eps * (Math.tan(x) + (Math.pow(Math.tan(x), 3.0) - (eps * -0.3333333333333333)))));
}
def code(x, eps): return eps * ((1.0 + math.pow(math.tan(x), 2.0)) + (eps * (math.tan(x) + (math.pow(math.tan(x), 3.0) - (eps * -0.3333333333333333)))))
function code(x, eps) return Float64(eps * Float64(Float64(1.0 + (tan(x) ^ 2.0)) + Float64(eps * Float64(tan(x) + Float64((tan(x) ^ 3.0) - Float64(eps * -0.3333333333333333)))))) end
function tmp = code(x, eps) tmp = eps * ((1.0 + (tan(x) ^ 2.0)) + (eps * (tan(x) + ((tan(x) ^ 3.0) - (eps * -0.3333333333333333))))); end
code[x_, eps_] := N[(eps * N[(N[(1.0 + N[Power[N[Tan[x], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] + N[(eps * N[(N[Tan[x], $MachinePrecision] + N[(N[Power[N[Tan[x], $MachinePrecision], 3.0], $MachinePrecision] - N[(eps * -0.3333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon \cdot \left(\left(1 + {\tan x}^{2}\right) + \varepsilon \cdot \left(\tan x + \left({\tan x}^{3} - \varepsilon \cdot -0.3333333333333333\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
Simplified99.5%
Taylor expanded in x around 0
sub-negN/A
metadata-evalN/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6499.4%
Simplified99.4%
+-commutativeN/A
associate-+r+N/A
+-lowering-+.f64N/A
Applied egg-rr99.4%
Taylor expanded in x around 0
*-commutativeN/A
*-lowering-*.f6499.3%
Simplified99.3%
(FPCore (x eps)
:precision binary64
(*
eps
(+
1.0
(+
(/ (pow (sin x) 2.0) (pow (cos x) 2.0))
(+ (* 0.3333333333333333 (* eps eps)) (* eps x))))))
double code(double x, double eps) {
return eps * (1.0 + ((pow(sin(x), 2.0) / pow(cos(x), 2.0)) + ((0.3333333333333333 * (eps * eps)) + (eps * x))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps * (1.0d0 + (((sin(x) ** 2.0d0) / (cos(x) ** 2.0d0)) + ((0.3333333333333333d0 * (eps * eps)) + (eps * x))))
end function
public static double code(double x, double eps) {
return eps * (1.0 + ((Math.pow(Math.sin(x), 2.0) / Math.pow(Math.cos(x), 2.0)) + ((0.3333333333333333 * (eps * eps)) + (eps * x))));
}
def code(x, eps): return eps * (1.0 + ((math.pow(math.sin(x), 2.0) / math.pow(math.cos(x), 2.0)) + ((0.3333333333333333 * (eps * eps)) + (eps * x))))
function code(x, eps) return Float64(eps * Float64(1.0 + Float64(Float64((sin(x) ^ 2.0) / (cos(x) ^ 2.0)) + Float64(Float64(0.3333333333333333 * Float64(eps * eps)) + Float64(eps * x))))) end
function tmp = code(x, eps) tmp = eps * (1.0 + (((sin(x) ^ 2.0) / (cos(x) ^ 2.0)) + ((0.3333333333333333 * (eps * eps)) + (eps * x)))); end
code[x_, eps_] := N[(eps * N[(1.0 + N[(N[(N[Power[N[Sin[x], $MachinePrecision], 2.0], $MachinePrecision] / N[Power[N[Cos[x], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] + N[(N[(0.3333333333333333 * N[(eps * eps), $MachinePrecision]), $MachinePrecision] + N[(eps * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon \cdot \left(1 + \left(\frac{{\sin x}^{2}}{{\cos x}^{2}} + \left(0.3333333333333333 \cdot \left(\varepsilon \cdot \varepsilon\right) + \varepsilon \cdot x\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
Simplified99.5%
Taylor expanded in x around 0
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
*-lowering-*.f6498.9%
Simplified98.9%
Final simplification98.9%
(FPCore (x eps) :precision binary64 (* eps (+ (+ 1.0 (pow (tan x) 2.0)) (+ (* eps x) (* eps (* eps 0.3333333333333333))))))
double code(double x, double eps) {
return eps * ((1.0 + pow(tan(x), 2.0)) + ((eps * x) + (eps * (eps * 0.3333333333333333))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps * ((1.0d0 + (tan(x) ** 2.0d0)) + ((eps * x) + (eps * (eps * 0.3333333333333333d0))))
end function
public static double code(double x, double eps) {
return eps * ((1.0 + Math.pow(Math.tan(x), 2.0)) + ((eps * x) + (eps * (eps * 0.3333333333333333))));
}
def code(x, eps): return eps * ((1.0 + math.pow(math.tan(x), 2.0)) + ((eps * x) + (eps * (eps * 0.3333333333333333))))
function code(x, eps) return Float64(eps * Float64(Float64(1.0 + (tan(x) ^ 2.0)) + Float64(Float64(eps * x) + Float64(eps * Float64(eps * 0.3333333333333333))))) end
function tmp = code(x, eps) tmp = eps * ((1.0 + (tan(x) ^ 2.0)) + ((eps * x) + (eps * (eps * 0.3333333333333333)))); end
code[x_, eps_] := N[(eps * N[(N[(1.0 + N[Power[N[Tan[x], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision] + N[(N[(eps * x), $MachinePrecision] + N[(eps * N[(eps * 0.3333333333333333), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon \cdot \left(\left(1 + {\tan x}^{2}\right) + \left(\varepsilon \cdot x + \varepsilon \cdot \left(\varepsilon \cdot 0.3333333333333333\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
Simplified99.5%
Taylor expanded in x around 0
sub-negN/A
metadata-evalN/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6499.4%
Simplified99.4%
+-commutativeN/A
associate-+r+N/A
+-lowering-+.f64N/A
Applied egg-rr99.4%
Taylor expanded in x around 0
+-lowering-+.f64N/A
*-commutativeN/A
unpow2N/A
associate-*l*N/A
metadata-evalN/A
distribute-rgt-neg-inN/A
*-commutativeN/A
*-lowering-*.f64N/A
*-commutativeN/A
distribute-rgt-neg-inN/A
metadata-evalN/A
*-lowering-*.f64N/A
*-lowering-*.f6498.9%
Simplified98.9%
Final simplification98.9%
(FPCore (x eps) :precision binary64 (+ eps (* eps (* (tan x) (tan x)))))
double code(double x, double eps) {
return eps + (eps * (tan(x) * tan(x)));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps + (eps * (tan(x) * tan(x)))
end function
public static double code(double x, double eps) {
return eps + (eps * (Math.tan(x) * Math.tan(x)));
}
def code(x, eps): return eps + (eps * (math.tan(x) * math.tan(x)))
function code(x, eps) return Float64(eps + Float64(eps * Float64(tan(x) * tan(x)))) end
function tmp = code(x, eps) tmp = eps + (eps * (tan(x) * tan(x))); end
code[x_, eps_] := N[(eps + N[(eps * N[(N[Tan[x], $MachinePrecision] * N[Tan[x], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon + \varepsilon \cdot \left(\tan x \cdot \tan x\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
*-lowering-*.f64N/A
sub-negN/A
+-lowering-+.f64N/A
mul-1-negN/A
remove-double-negN/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
sin-lowering-sin.f64N/A
pow-lowering-pow.f64N/A
cos-lowering-cos.f6498.8%
Simplified98.8%
+-commutativeN/A
distribute-lft-inN/A
*-rgt-identityN/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
unpow2N/A
times-fracN/A
*-lowering-*.f64N/A
quot-tanN/A
tan-lowering-tan.f64N/A
quot-tanN/A
tan-lowering-tan.f6498.8%
Applied egg-rr98.8%
Final simplification98.8%
(FPCore (x eps)
:precision binary64
(+
eps
(*
eps
(*
(* x x)
(+
1.0
(*
(* x x)
(+
0.6666666666666666
(*
(* x x)
(+ 0.37777777777777777 (* (* x x) 0.19682539682539682))))))))))
double code(double x, double eps) {
return eps + (eps * ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * (0.37777777777777777 + ((x * x) * 0.19682539682539682))))))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps + (eps * ((x * x) * (1.0d0 + ((x * x) * (0.6666666666666666d0 + ((x * x) * (0.37777777777777777d0 + ((x * x) * 0.19682539682539682d0))))))))
end function
public static double code(double x, double eps) {
return eps + (eps * ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * (0.37777777777777777 + ((x * x) * 0.19682539682539682))))))));
}
def code(x, eps): return eps + (eps * ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * (0.37777777777777777 + ((x * x) * 0.19682539682539682))))))))
function code(x, eps) return Float64(eps + Float64(eps * Float64(Float64(x * x) * Float64(1.0 + Float64(Float64(x * x) * Float64(0.6666666666666666 + Float64(Float64(x * x) * Float64(0.37777777777777777 + Float64(Float64(x * x) * 0.19682539682539682))))))))) end
function tmp = code(x, eps) tmp = eps + (eps * ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * (0.37777777777777777 + ((x * x) * 0.19682539682539682)))))))); end
code[x_, eps_] := N[(eps + N[(eps * N[(N[(x * x), $MachinePrecision] * N[(1.0 + N[(N[(x * x), $MachinePrecision] * N[(0.6666666666666666 + N[(N[(x * x), $MachinePrecision] * N[(0.37777777777777777 + N[(N[(x * x), $MachinePrecision] * 0.19682539682539682), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon + \varepsilon \cdot \left(\left(x \cdot x\right) \cdot \left(1 + \left(x \cdot x\right) \cdot \left(0.6666666666666666 + \left(x \cdot x\right) \cdot \left(0.37777777777777777 + \left(x \cdot x\right) \cdot 0.19682539682539682\right)\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
*-lowering-*.f64N/A
sub-negN/A
+-lowering-+.f64N/A
mul-1-negN/A
remove-double-negN/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
sin-lowering-sin.f64N/A
pow-lowering-pow.f64N/A
cos-lowering-cos.f6498.8%
Simplified98.8%
Taylor expanded in x around 0
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6498.2%
Simplified98.2%
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
+-lowering-+.f64N/A
Applied egg-rr98.2%
Final simplification98.2%
(FPCore (x eps)
:precision binary64
(*
eps
(+
1.0
(*
(* x x)
(+
1.0
(*
(* x x)
(+
0.6666666666666666
(*
(* x x)
(+ 0.37777777777777777 (* (* x x) 0.19682539682539682))))))))))
double code(double x, double eps) {
return eps * (1.0 + ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * (0.37777777777777777 + ((x * x) * 0.19682539682539682))))))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps * (1.0d0 + ((x * x) * (1.0d0 + ((x * x) * (0.6666666666666666d0 + ((x * x) * (0.37777777777777777d0 + ((x * x) * 0.19682539682539682d0))))))))
end function
public static double code(double x, double eps) {
return eps * (1.0 + ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * (0.37777777777777777 + ((x * x) * 0.19682539682539682))))))));
}
def code(x, eps): return eps * (1.0 + ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * (0.37777777777777777 + ((x * x) * 0.19682539682539682))))))))
function code(x, eps) return Float64(eps * Float64(1.0 + Float64(Float64(x * x) * Float64(1.0 + Float64(Float64(x * x) * Float64(0.6666666666666666 + Float64(Float64(x * x) * Float64(0.37777777777777777 + Float64(Float64(x * x) * 0.19682539682539682))))))))) end
function tmp = code(x, eps) tmp = eps * (1.0 + ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * (0.37777777777777777 + ((x * x) * 0.19682539682539682)))))))); end
code[x_, eps_] := N[(eps * N[(1.0 + N[(N[(x * x), $MachinePrecision] * N[(1.0 + N[(N[(x * x), $MachinePrecision] * N[(0.6666666666666666 + N[(N[(x * x), $MachinePrecision] * N[(0.37777777777777777 + N[(N[(x * x), $MachinePrecision] * 0.19682539682539682), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon \cdot \left(1 + \left(x \cdot x\right) \cdot \left(1 + \left(x \cdot x\right) \cdot \left(0.6666666666666666 + \left(x \cdot x\right) \cdot \left(0.37777777777777777 + \left(x \cdot x\right) \cdot 0.19682539682539682\right)\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
*-lowering-*.f64N/A
sub-negN/A
+-lowering-+.f64N/A
mul-1-negN/A
remove-double-negN/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
sin-lowering-sin.f64N/A
pow-lowering-pow.f64N/A
cos-lowering-cos.f6498.8%
Simplified98.8%
Taylor expanded in x around 0
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6498.2%
Simplified98.2%
(FPCore (x eps)
:precision binary64
(+
eps
(*
eps
(*
(* x x)
(+
1.0
(* x (* x (+ 0.6666666666666666 (* (* x x) 0.37777777777777777)))))))))
double code(double x, double eps) {
return eps + (eps * ((x * x) * (1.0 + (x * (x * (0.6666666666666666 + ((x * x) * 0.37777777777777777)))))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps + (eps * ((x * x) * (1.0d0 + (x * (x * (0.6666666666666666d0 + ((x * x) * 0.37777777777777777d0)))))))
end function
public static double code(double x, double eps) {
return eps + (eps * ((x * x) * (1.0 + (x * (x * (0.6666666666666666 + ((x * x) * 0.37777777777777777)))))));
}
def code(x, eps): return eps + (eps * ((x * x) * (1.0 + (x * (x * (0.6666666666666666 + ((x * x) * 0.37777777777777777)))))))
function code(x, eps) return Float64(eps + Float64(eps * Float64(Float64(x * x) * Float64(1.0 + Float64(x * Float64(x * Float64(0.6666666666666666 + Float64(Float64(x * x) * 0.37777777777777777)))))))) end
function tmp = code(x, eps) tmp = eps + (eps * ((x * x) * (1.0 + (x * (x * (0.6666666666666666 + ((x * x) * 0.37777777777777777))))))); end
code[x_, eps_] := N[(eps + N[(eps * N[(N[(x * x), $MachinePrecision] * N[(1.0 + N[(x * N[(x * N[(0.6666666666666666 + N[(N[(x * x), $MachinePrecision] * 0.37777777777777777), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon + \varepsilon \cdot \left(\left(x \cdot x\right) \cdot \left(1 + x \cdot \left(x \cdot \left(0.6666666666666666 + \left(x \cdot x\right) \cdot 0.37777777777777777\right)\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
*-lowering-*.f64N/A
sub-negN/A
+-lowering-+.f64N/A
mul-1-negN/A
remove-double-negN/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
sin-lowering-sin.f64N/A
pow-lowering-pow.f64N/A
cos-lowering-cos.f6498.8%
Simplified98.8%
Taylor expanded in x around 0
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6498.2%
Simplified98.2%
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
+-lowering-+.f64N/A
Applied egg-rr98.2%
Taylor expanded in x around 0
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
unpow2N/A
associate-*r*N/A
*-lowering-*.f64N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6498.2%
Simplified98.2%
Final simplification98.2%
(FPCore (x eps)
:precision binary64
(*
eps
(+
1.0
(*
(* x x)
(+
1.0
(* (* x x) (+ 0.6666666666666666 (* (* x x) 0.37777777777777777))))))))
double code(double x, double eps) {
return eps * (1.0 + ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * 0.37777777777777777))))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps * (1.0d0 + ((x * x) * (1.0d0 + ((x * x) * (0.6666666666666666d0 + ((x * x) * 0.37777777777777777d0))))))
end function
public static double code(double x, double eps) {
return eps * (1.0 + ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * 0.37777777777777777))))));
}
def code(x, eps): return eps * (1.0 + ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * 0.37777777777777777))))))
function code(x, eps) return Float64(eps * Float64(1.0 + Float64(Float64(x * x) * Float64(1.0 + Float64(Float64(x * x) * Float64(0.6666666666666666 + Float64(Float64(x * x) * 0.37777777777777777))))))) end
function tmp = code(x, eps) tmp = eps * (1.0 + ((x * x) * (1.0 + ((x * x) * (0.6666666666666666 + ((x * x) * 0.37777777777777777)))))); end
code[x_, eps_] := N[(eps * N[(1.0 + N[(N[(x * x), $MachinePrecision] * N[(1.0 + N[(N[(x * x), $MachinePrecision] * N[(0.6666666666666666 + N[(N[(x * x), $MachinePrecision] * 0.37777777777777777), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon \cdot \left(1 + \left(x \cdot x\right) \cdot \left(1 + \left(x \cdot x\right) \cdot \left(0.6666666666666666 + \left(x \cdot x\right) \cdot 0.37777777777777777\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
*-lowering-*.f64N/A
sub-negN/A
+-lowering-+.f64N/A
mul-1-negN/A
remove-double-negN/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
sin-lowering-sin.f64N/A
pow-lowering-pow.f64N/A
cos-lowering-cos.f6498.8%
Simplified98.8%
Taylor expanded in x around 0
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6498.2%
Simplified98.2%
(FPCore (x eps) :precision binary64 (+ eps (* (* x x) (+ eps (* 0.6666666666666666 (* eps (* x x)))))))
double code(double x, double eps) {
return eps + ((x * x) * (eps + (0.6666666666666666 * (eps * (x * x)))));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps + ((x * x) * (eps + (0.6666666666666666d0 * (eps * (x * x)))))
end function
public static double code(double x, double eps) {
return eps + ((x * x) * (eps + (0.6666666666666666 * (eps * (x * x)))));
}
def code(x, eps): return eps + ((x * x) * (eps + (0.6666666666666666 * (eps * (x * x)))))
function code(x, eps) return Float64(eps + Float64(Float64(x * x) * Float64(eps + Float64(0.6666666666666666 * Float64(eps * Float64(x * x)))))) end
function tmp = code(x, eps) tmp = eps + ((x * x) * (eps + (0.6666666666666666 * (eps * (x * x))))); end
code[x_, eps_] := N[(eps + N[(N[(x * x), $MachinePrecision] * N[(eps + N[(0.6666666666666666 * N[(eps * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon + \left(x \cdot x\right) \cdot \left(\varepsilon + 0.6666666666666666 \cdot \left(\varepsilon \cdot \left(x \cdot x\right)\right)\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
*-lowering-*.f64N/A
sub-negN/A
+-lowering-+.f64N/A
mul-1-negN/A
remove-double-negN/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
sin-lowering-sin.f64N/A
pow-lowering-pow.f64N/A
cos-lowering-cos.f6498.8%
Simplified98.8%
Taylor expanded in x around 0
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6498.1%
Simplified98.1%
Final simplification98.1%
(FPCore (x eps) :precision binary64 (+ eps (* eps (* x x))))
double code(double x, double eps) {
return eps + (eps * (x * x));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps + (eps * (x * x))
end function
public static double code(double x, double eps) {
return eps + (eps * (x * x));
}
def code(x, eps): return eps + (eps * (x * x))
function code(x, eps) return Float64(eps + Float64(eps * Float64(x * x))) end
function tmp = code(x, eps) tmp = eps + (eps * (x * x)); end
code[x_, eps_] := N[(eps + N[(eps * N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon + \varepsilon \cdot \left(x \cdot x\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
*-lowering-*.f64N/A
sub-negN/A
+-lowering-+.f64N/A
mul-1-negN/A
remove-double-negN/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
sin-lowering-sin.f64N/A
pow-lowering-pow.f64N/A
cos-lowering-cos.f6498.8%
Simplified98.8%
Taylor expanded in x around 0
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
*-commutativeN/A
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6498.2%
Simplified98.2%
+-commutativeN/A
distribute-rgt-inN/A
*-lft-identityN/A
+-lowering-+.f64N/A
Applied egg-rr98.2%
Taylor expanded in x around 0
*-lowering-*.f64N/A
unpow2N/A
*-lowering-*.f6498.0%
Simplified98.0%
Final simplification98.0%
(FPCore (x eps) :precision binary64 (* eps (+ 1.0 (* x x))))
double code(double x, double eps) {
return eps * (1.0 + (x * x));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps * (1.0d0 + (x * x))
end function
public static double code(double x, double eps) {
return eps * (1.0 + (x * x));
}
def code(x, eps): return eps * (1.0 + (x * x))
function code(x, eps) return Float64(eps * Float64(1.0 + Float64(x * x))) end
function tmp = code(x, eps) tmp = eps * (1.0 + (x * x)); end
code[x_, eps_] := N[(eps * N[(1.0 + N[(x * x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\varepsilon \cdot \left(1 + x \cdot x\right)
\end{array}
Initial program 62.1%
Taylor expanded in eps around 0
*-lowering-*.f64N/A
sub-negN/A
+-lowering-+.f64N/A
mul-1-negN/A
remove-double-negN/A
/-lowering-/.f64N/A
pow-lowering-pow.f64N/A
sin-lowering-sin.f64N/A
pow-lowering-pow.f64N/A
cos-lowering-cos.f6498.8%
Simplified98.8%
Taylor expanded in x around 0
*-commutativeN/A
distribute-rgt1-inN/A
+-commutativeN/A
*-lowering-*.f64N/A
+-lowering-+.f64N/A
unpow2N/A
*-lowering-*.f6498.0%
Simplified98.0%
Final simplification98.0%
(FPCore (x eps) :precision binary64 eps)
double code(double x, double eps) {
return eps;
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = eps
end function
public static double code(double x, double eps) {
return eps;
}
def code(x, eps): return eps
function code(x, eps) return eps end
function tmp = code(x, eps) tmp = eps; end
code[x_, eps_] := eps
\begin{array}{l}
\\
\varepsilon
\end{array}
Initial program 62.1%
Taylor expanded in x around 0
/-lowering-/.f64N/A
sin-lowering-sin.f64N/A
cos-lowering-cos.f6497.4%
Simplified97.4%
Taylor expanded in eps around 0
Simplified97.4%
(FPCore (x eps) :precision binary64 (/ (sin eps) (* (cos x) (cos (+ x eps)))))
double code(double x, double eps) {
return sin(eps) / (cos(x) * cos((x + eps)));
}
real(8) function code(x, eps)
real(8), intent (in) :: x
real(8), intent (in) :: eps
code = sin(eps) / (cos(x) * cos((x + eps)))
end function
public static double code(double x, double eps) {
return Math.sin(eps) / (Math.cos(x) * Math.cos((x + eps)));
}
def code(x, eps): return math.sin(eps) / (math.cos(x) * math.cos((x + eps)))
function code(x, eps) return Float64(sin(eps) / Float64(cos(x) * cos(Float64(x + eps)))) end
function tmp = code(x, eps) tmp = sin(eps) / (cos(x) * cos((x + eps))); end
code[x_, eps_] := N[(N[Sin[eps], $MachinePrecision] / N[(N[Cos[x], $MachinePrecision] * N[Cos[N[(x + eps), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\frac{\sin \varepsilon}{\cos x \cdot \cos \left(x + \varepsilon\right)}
\end{array}
herbie shell --seed 2024158
(FPCore (x eps)
:name "2tan (problem 3.3.2)"
:precision binary64
:pre (and (and (and (<= -10000.0 x) (<= x 10000.0)) (< (* 1e-16 (fabs x)) eps)) (< eps (fabs x)))
:alt
(! :herbie-platform default (/ (sin eps) (* (cos x) (cos (+ x eps)))))
(- (tan (+ x eps)) (tan x)))