FastMath dist3

Percentage Accurate: 97.9% → 100.0%
Time: 4.8s
Alternatives: 6
Speedup: 1.9×

Specification

?
\[\begin{array}{l} \\ \left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \end{array} \]
(FPCore (d1 d2 d3)
 :precision binary64
 (+ (+ (* d1 d2) (* (+ d3 5.0) d1)) (* d1 32.0)))
double code(double d1, double d2, double d3) {
	return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    code = ((d1 * d2) + ((d3 + 5.0d0) * d1)) + (d1 * 32.0d0)
end function
public static double code(double d1, double d2, double d3) {
	return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
}
def code(d1, d2, d3):
	return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0)
function code(d1, d2, d3)
	return Float64(Float64(Float64(d1 * d2) + Float64(Float64(d3 + 5.0) * d1)) + Float64(d1 * 32.0))
end
function tmp = code(d1, d2, d3)
	tmp = ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
end
code[d1_, d2_, d3_] := N[(N[(N[(d1 * d2), $MachinePrecision] + N[(N[(d3 + 5.0), $MachinePrecision] * d1), $MachinePrecision]), $MachinePrecision] + N[(d1 * 32.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 6 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 97.9% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \end{array} \]
(FPCore (d1 d2 d3)
 :precision binary64
 (+ (+ (* d1 d2) (* (+ d3 5.0) d1)) (* d1 32.0)))
double code(double d1, double d2, double d3) {
	return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    code = ((d1 * d2) + ((d3 + 5.0d0) * d1)) + (d1 * 32.0d0)
end function
public static double code(double d1, double d2, double d3) {
	return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
}
def code(d1, d2, d3):
	return ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0)
function code(d1, d2, d3)
	return Float64(Float64(Float64(d1 * d2) + Float64(Float64(d3 + 5.0) * d1)) + Float64(d1 * 32.0))
end
function tmp = code(d1, d2, d3)
	tmp = ((d1 * d2) + ((d3 + 5.0) * d1)) + (d1 * 32.0);
end
code[d1_, d2_, d3_] := N[(N[(N[(d1 * d2), $MachinePrecision] + N[(N[(d3 + 5.0), $MachinePrecision] * d1), $MachinePrecision]), $MachinePrecision] + N[(d1 * 32.0), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32
\end{array}

Alternative 1: 100.0% accurate, 1.9× speedup?

\[\begin{array}{l} \\ d1 \cdot \left(d3 + \left(d2 + 37\right)\right) \end{array} \]
(FPCore (d1 d2 d3) :precision binary64 (* d1 (+ d3 (+ d2 37.0))))
double code(double d1, double d2, double d3) {
	return d1 * (d3 + (d2 + 37.0));
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    code = d1 * (d3 + (d2 + 37.0d0))
end function
public static double code(double d1, double d2, double d3) {
	return d1 * (d3 + (d2 + 37.0));
}
def code(d1, d2, d3):
	return d1 * (d3 + (d2 + 37.0))
function code(d1, d2, d3)
	return Float64(d1 * Float64(d3 + Float64(d2 + 37.0)))
end
function tmp = code(d1, d2, d3)
	tmp = d1 * (d3 + (d2 + 37.0));
end
code[d1_, d2_, d3_] := N[(d1 * N[(d3 + N[(d2 + 37.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
d1 \cdot \left(d3 + \left(d2 + 37\right)\right)
\end{array}
Derivation
  1. Initial program 98.4%

    \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
  2. Step-by-step derivation
    1. cancel-sign-sub98.4%

      \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
    2. +-commutative98.4%

      \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
    3. *-commutative98.4%

      \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
    4. distribute-lft-out99.6%

      \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
    5. distribute-lft-neg-out99.6%

      \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
    6. distribute-rgt-neg-in99.6%

      \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
    7. distribute-lft-out--100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
    8. associate-+r+100.0%

      \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
    9. +-commutative100.0%

      \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
    10. associate--l+100.0%

      \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
    11. sub-neg100.0%

      \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
    12. metadata-eval100.0%

      \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
    13. metadata-eval100.0%

      \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
    14. associate-+l+100.0%

      \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
    15. metadata-eval100.0%

      \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
  3. Simplified100.0%

    \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
  4. Add Preprocessing
  5. Final simplification100.0%

    \[\leadsto d1 \cdot \left(d3 + \left(d2 + 37\right)\right) \]
  6. Add Preprocessing

Alternative 2: 51.3% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;d3 \leq 3.4 \cdot 10^{-217}:\\ \;\;\;\;d1 \cdot d2\\ \mathbf{elif}\;d3 \leq 0.0044:\\ \;\;\;\;d1 \cdot 37\\ \mathbf{else}:\\ \;\;\;\;d1 \cdot d3\\ \end{array} \end{array} \]
(FPCore (d1 d2 d3)
 :precision binary64
 (if (<= d3 3.4e-217) (* d1 d2) (if (<= d3 0.0044) (* d1 37.0) (* d1 d3))))
double code(double d1, double d2, double d3) {
	double tmp;
	if (d3 <= 3.4e-217) {
		tmp = d1 * d2;
	} else if (d3 <= 0.0044) {
		tmp = d1 * 37.0;
	} else {
		tmp = d1 * d3;
	}
	return tmp;
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    real(8) :: tmp
    if (d3 <= 3.4d-217) then
        tmp = d1 * d2
    else if (d3 <= 0.0044d0) then
        tmp = d1 * 37.0d0
    else
        tmp = d1 * d3
    end if
    code = tmp
end function
public static double code(double d1, double d2, double d3) {
	double tmp;
	if (d3 <= 3.4e-217) {
		tmp = d1 * d2;
	} else if (d3 <= 0.0044) {
		tmp = d1 * 37.0;
	} else {
		tmp = d1 * d3;
	}
	return tmp;
}
def code(d1, d2, d3):
	tmp = 0
	if d3 <= 3.4e-217:
		tmp = d1 * d2
	elif d3 <= 0.0044:
		tmp = d1 * 37.0
	else:
		tmp = d1 * d3
	return tmp
function code(d1, d2, d3)
	tmp = 0.0
	if (d3 <= 3.4e-217)
		tmp = Float64(d1 * d2);
	elseif (d3 <= 0.0044)
		tmp = Float64(d1 * 37.0);
	else
		tmp = Float64(d1 * d3);
	end
	return tmp
end
function tmp_2 = code(d1, d2, d3)
	tmp = 0.0;
	if (d3 <= 3.4e-217)
		tmp = d1 * d2;
	elseif (d3 <= 0.0044)
		tmp = d1 * 37.0;
	else
		tmp = d1 * d3;
	end
	tmp_2 = tmp;
end
code[d1_, d2_, d3_] := If[LessEqual[d3, 3.4e-217], N[(d1 * d2), $MachinePrecision], If[LessEqual[d3, 0.0044], N[(d1 * 37.0), $MachinePrecision], N[(d1 * d3), $MachinePrecision]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;d3 \leq 3.4 \cdot 10^{-217}:\\
\;\;\;\;d1 \cdot d2\\

\mathbf{elif}\;d3 \leq 0.0044:\\
\;\;\;\;d1 \cdot 37\\

\mathbf{else}:\\
\;\;\;\;d1 \cdot d3\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if d3 < 3.40000000000000016e-217

    1. Initial program 98.6%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub98.6%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative98.6%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative98.6%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out99.3%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out99.3%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in99.3%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d2 around inf 44.7%

      \[\leadsto \color{blue}{d1 \cdot d2} \]

    if 3.40000000000000016e-217 < d3 < 0.00440000000000000027

    1. Initial program 99.9%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub99.9%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative99.9%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative99.9%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d2 around 0 48.4%

      \[\leadsto \color{blue}{d1 \cdot \left(37 + d3\right)} \]
    6. Step-by-step derivation
      1. +-commutative48.4%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + 37\right)} \]
      2. distribute-lft-in48.4%

        \[\leadsto \color{blue}{d1 \cdot d3 + d1 \cdot 37} \]
    7. Applied egg-rr48.4%

      \[\leadsto \color{blue}{d1 \cdot d3 + d1 \cdot 37} \]
    8. Taylor expanded in d3 around 0 46.4%

      \[\leadsto \color{blue}{37 \cdot d1} \]
    9. Step-by-step derivation
      1. *-commutative46.4%

        \[\leadsto \color{blue}{d1 \cdot 37} \]
    10. Simplified46.4%

      \[\leadsto \color{blue}{d1 \cdot 37} \]

    if 0.00440000000000000027 < d3

    1. Initial program 97.2%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub97.2%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative97.2%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative97.2%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d3 around inf 84.0%

      \[\leadsto \color{blue}{d1 \cdot d3} \]
  3. Recombined 3 regimes into one program.
  4. Final simplification56.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;d3 \leq 3.4 \cdot 10^{-217}:\\ \;\;\;\;d1 \cdot d2\\ \mathbf{elif}\;d3 \leq 0.0044:\\ \;\;\;\;d1 \cdot 37\\ \mathbf{else}:\\ \;\;\;\;d1 \cdot d3\\ \end{array} \]
  5. Add Preprocessing

Alternative 3: 76.4% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;d3 \leq 760000:\\ \;\;\;\;d1 \cdot \left(d2 + 37\right)\\ \mathbf{else}:\\ \;\;\;\;d1 \cdot d3\\ \end{array} \end{array} \]
(FPCore (d1 d2 d3)
 :precision binary64
 (if (<= d3 760000.0) (* d1 (+ d2 37.0)) (* d1 d3)))
double code(double d1, double d2, double d3) {
	double tmp;
	if (d3 <= 760000.0) {
		tmp = d1 * (d2 + 37.0);
	} else {
		tmp = d1 * d3;
	}
	return tmp;
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    real(8) :: tmp
    if (d3 <= 760000.0d0) then
        tmp = d1 * (d2 + 37.0d0)
    else
        tmp = d1 * d3
    end if
    code = tmp
end function
public static double code(double d1, double d2, double d3) {
	double tmp;
	if (d3 <= 760000.0) {
		tmp = d1 * (d2 + 37.0);
	} else {
		tmp = d1 * d3;
	}
	return tmp;
}
def code(d1, d2, d3):
	tmp = 0
	if d3 <= 760000.0:
		tmp = d1 * (d2 + 37.0)
	else:
		tmp = d1 * d3
	return tmp
function code(d1, d2, d3)
	tmp = 0.0
	if (d3 <= 760000.0)
		tmp = Float64(d1 * Float64(d2 + 37.0));
	else
		tmp = Float64(d1 * d3);
	end
	return tmp
end
function tmp_2 = code(d1, d2, d3)
	tmp = 0.0;
	if (d3 <= 760000.0)
		tmp = d1 * (d2 + 37.0);
	else
		tmp = d1 * d3;
	end
	tmp_2 = tmp;
end
code[d1_, d2_, d3_] := If[LessEqual[d3, 760000.0], N[(d1 * N[(d2 + 37.0), $MachinePrecision]), $MachinePrecision], N[(d1 * d3), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;d3 \leq 760000:\\
\;\;\;\;d1 \cdot \left(d2 + 37\right)\\

\mathbf{else}:\\
\;\;\;\;d1 \cdot d3\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if d3 < 7.6e5

    1. Initial program 98.9%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub98.9%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative98.9%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative98.9%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out99.4%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out99.4%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in99.4%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d3 around 0 73.8%

      \[\leadsto \color{blue}{d1 \cdot \left(37 + d2\right)} \]

    if 7.6e5 < d3

    1. Initial program 97.1%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub97.1%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative97.1%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative97.1%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d3 around inf 85.9%

      \[\leadsto \color{blue}{d1 \cdot d3} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;d3 \leq 760000:\\ \;\;\;\;d1 \cdot \left(d2 + 37\right)\\ \mathbf{else}:\\ \;\;\;\;d1 \cdot d3\\ \end{array} \]
  5. Add Preprocessing

Alternative 4: 77.1% accurate, 1.3× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;d2 \leq -3500:\\ \;\;\;\;d1 \cdot \left(d2 + 37\right)\\ \mathbf{else}:\\ \;\;\;\;d1 \cdot \left(d3 + 37\right)\\ \end{array} \end{array} \]
(FPCore (d1 d2 d3)
 :precision binary64
 (if (<= d2 -3500.0) (* d1 (+ d2 37.0)) (* d1 (+ d3 37.0))))
double code(double d1, double d2, double d3) {
	double tmp;
	if (d2 <= -3500.0) {
		tmp = d1 * (d2 + 37.0);
	} else {
		tmp = d1 * (d3 + 37.0);
	}
	return tmp;
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    real(8) :: tmp
    if (d2 <= (-3500.0d0)) then
        tmp = d1 * (d2 + 37.0d0)
    else
        tmp = d1 * (d3 + 37.0d0)
    end if
    code = tmp
end function
public static double code(double d1, double d2, double d3) {
	double tmp;
	if (d2 <= -3500.0) {
		tmp = d1 * (d2 + 37.0);
	} else {
		tmp = d1 * (d3 + 37.0);
	}
	return tmp;
}
def code(d1, d2, d3):
	tmp = 0
	if d2 <= -3500.0:
		tmp = d1 * (d2 + 37.0)
	else:
		tmp = d1 * (d3 + 37.0)
	return tmp
function code(d1, d2, d3)
	tmp = 0.0
	if (d2 <= -3500.0)
		tmp = Float64(d1 * Float64(d2 + 37.0));
	else
		tmp = Float64(d1 * Float64(d3 + 37.0));
	end
	return tmp
end
function tmp_2 = code(d1, d2, d3)
	tmp = 0.0;
	if (d2 <= -3500.0)
		tmp = d1 * (d2 + 37.0);
	else
		tmp = d1 * (d3 + 37.0);
	end
	tmp_2 = tmp;
end
code[d1_, d2_, d3_] := If[LessEqual[d2, -3500.0], N[(d1 * N[(d2 + 37.0), $MachinePrecision]), $MachinePrecision], N[(d1 * N[(d3 + 37.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;d2 \leq -3500:\\
\;\;\;\;d1 \cdot \left(d2 + 37\right)\\

\mathbf{else}:\\
\;\;\;\;d1 \cdot \left(d3 + 37\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if d2 < -3500

    1. Initial program 95.3%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub95.3%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative95.3%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative95.3%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out98.4%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out98.4%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in98.4%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d3 around 0 77.1%

      \[\leadsto \color{blue}{d1 \cdot \left(37 + d2\right)} \]

    if -3500 < d2

    1. Initial program 99.4%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub99.4%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative99.4%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative99.4%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d2 around 0 77.0%

      \[\leadsto \color{blue}{d1 \cdot \left(37 + d3\right)} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification77.0%

    \[\leadsto \begin{array}{l} \mathbf{if}\;d2 \leq -3500:\\ \;\;\;\;d1 \cdot \left(d2 + 37\right)\\ \mathbf{else}:\\ \;\;\;\;d1 \cdot \left(d3 + 37\right)\\ \end{array} \]
  5. Add Preprocessing

Alternative 5: 45.9% accurate, 1.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;d2 \leq -3200:\\ \;\;\;\;d1 \cdot d2\\ \mathbf{else}:\\ \;\;\;\;d1 \cdot 37\\ \end{array} \end{array} \]
(FPCore (d1 d2 d3)
 :precision binary64
 (if (<= d2 -3200.0) (* d1 d2) (* d1 37.0)))
double code(double d1, double d2, double d3) {
	double tmp;
	if (d2 <= -3200.0) {
		tmp = d1 * d2;
	} else {
		tmp = d1 * 37.0;
	}
	return tmp;
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    real(8) :: tmp
    if (d2 <= (-3200.0d0)) then
        tmp = d1 * d2
    else
        tmp = d1 * 37.0d0
    end if
    code = tmp
end function
public static double code(double d1, double d2, double d3) {
	double tmp;
	if (d2 <= -3200.0) {
		tmp = d1 * d2;
	} else {
		tmp = d1 * 37.0;
	}
	return tmp;
}
def code(d1, d2, d3):
	tmp = 0
	if d2 <= -3200.0:
		tmp = d1 * d2
	else:
		tmp = d1 * 37.0
	return tmp
function code(d1, d2, d3)
	tmp = 0.0
	if (d2 <= -3200.0)
		tmp = Float64(d1 * d2);
	else
		tmp = Float64(d1 * 37.0);
	end
	return tmp
end
function tmp_2 = code(d1, d2, d3)
	tmp = 0.0;
	if (d2 <= -3200.0)
		tmp = d1 * d2;
	else
		tmp = d1 * 37.0;
	end
	tmp_2 = tmp;
end
code[d1_, d2_, d3_] := If[LessEqual[d2, -3200.0], N[(d1 * d2), $MachinePrecision], N[(d1 * 37.0), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;d2 \leq -3200:\\
\;\;\;\;d1 \cdot d2\\

\mathbf{else}:\\
\;\;\;\;d1 \cdot 37\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if d2 < -3200

    1. Initial program 95.3%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub95.3%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative95.3%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative95.3%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out98.4%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out98.4%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in98.4%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d2 around inf 75.1%

      \[\leadsto \color{blue}{d1 \cdot d2} \]

    if -3200 < d2

    1. Initial program 99.4%

      \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
    2. Step-by-step derivation
      1. cancel-sign-sub99.4%

        \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
      2. +-commutative99.4%

        \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
      3. *-commutative99.4%

        \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
      4. distribute-lft-out100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
      5. distribute-lft-neg-out100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
      6. distribute-rgt-neg-in100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
      7. distribute-lft-out--100.0%

        \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
      8. associate-+r+100.0%

        \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
      9. +-commutative100.0%

        \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
      10. associate--l+100.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
      11. sub-neg100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
      12. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
      13. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
      14. associate-+l+100.0%

        \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
      15. metadata-eval100.0%

        \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
    3. Simplified100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
    4. Add Preprocessing
    5. Taylor expanded in d2 around 0 77.0%

      \[\leadsto \color{blue}{d1 \cdot \left(37 + d3\right)} \]
    6. Step-by-step derivation
      1. +-commutative77.0%

        \[\leadsto d1 \cdot \color{blue}{\left(d3 + 37\right)} \]
      2. distribute-lft-in77.0%

        \[\leadsto \color{blue}{d1 \cdot d3 + d1 \cdot 37} \]
    7. Applied egg-rr77.0%

      \[\leadsto \color{blue}{d1 \cdot d3 + d1 \cdot 37} \]
    8. Taylor expanded in d3 around 0 29.7%

      \[\leadsto \color{blue}{37 \cdot d1} \]
    9. Step-by-step derivation
      1. *-commutative29.7%

        \[\leadsto \color{blue}{d1 \cdot 37} \]
    10. Simplified29.7%

      \[\leadsto \color{blue}{d1 \cdot 37} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification41.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;d2 \leq -3200:\\ \;\;\;\;d1 \cdot d2\\ \mathbf{else}:\\ \;\;\;\;d1 \cdot 37\\ \end{array} \]
  5. Add Preprocessing

Alternative 6: 27.3% accurate, 4.3× speedup?

\[\begin{array}{l} \\ d1 \cdot 37 \end{array} \]
(FPCore (d1 d2 d3) :precision binary64 (* d1 37.0))
double code(double d1, double d2, double d3) {
	return d1 * 37.0;
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    code = d1 * 37.0d0
end function
public static double code(double d1, double d2, double d3) {
	return d1 * 37.0;
}
def code(d1, d2, d3):
	return d1 * 37.0
function code(d1, d2, d3)
	return Float64(d1 * 37.0)
end
function tmp = code(d1, d2, d3)
	tmp = d1 * 37.0;
end
code[d1_, d2_, d3_] := N[(d1 * 37.0), $MachinePrecision]
\begin{array}{l}

\\
d1 \cdot 37
\end{array}
Derivation
  1. Initial program 98.4%

    \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
  2. Step-by-step derivation
    1. cancel-sign-sub98.4%

      \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
    2. +-commutative98.4%

      \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
    3. *-commutative98.4%

      \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
    4. distribute-lft-out99.6%

      \[\leadsto \color{blue}{d1 \cdot \left(\left(d3 + 5\right) + d2\right)} - \left(-d1\right) \cdot 32 \]
    5. distribute-lft-neg-out99.6%

      \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{\left(-d1 \cdot 32\right)} \]
    6. distribute-rgt-neg-in99.6%

      \[\leadsto d1 \cdot \left(\left(d3 + 5\right) + d2\right) - \color{blue}{d1 \cdot \left(-32\right)} \]
    7. distribute-lft-out--100.0%

      \[\leadsto \color{blue}{d1 \cdot \left(\left(\left(d3 + 5\right) + d2\right) - \left(-32\right)\right)} \]
    8. associate-+r+100.0%

      \[\leadsto d1 \cdot \left(\color{blue}{\left(d3 + \left(5 + d2\right)\right)} - \left(-32\right)\right) \]
    9. +-commutative100.0%

      \[\leadsto d1 \cdot \left(\left(d3 + \color{blue}{\left(d2 + 5\right)}\right) - \left(-32\right)\right) \]
    10. associate--l+100.0%

      \[\leadsto d1 \cdot \color{blue}{\left(d3 + \left(\left(d2 + 5\right) - \left(-32\right)\right)\right)} \]
    11. sub-neg100.0%

      \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(\left(d2 + 5\right) + \left(-\left(-32\right)\right)\right)}\right) \]
    12. metadata-eval100.0%

      \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \left(-\color{blue}{-32}\right)\right)\right) \]
    13. metadata-eval100.0%

      \[\leadsto d1 \cdot \left(d3 + \left(\left(d2 + 5\right) + \color{blue}{32}\right)\right) \]
    14. associate-+l+100.0%

      \[\leadsto d1 \cdot \left(d3 + \color{blue}{\left(d2 + \left(5 + 32\right)\right)}\right) \]
    15. metadata-eval100.0%

      \[\leadsto d1 \cdot \left(d3 + \left(d2 + \color{blue}{37}\right)\right) \]
  3. Simplified100.0%

    \[\leadsto \color{blue}{d1 \cdot \left(d3 + \left(d2 + 37\right)\right)} \]
  4. Add Preprocessing
  5. Taylor expanded in d2 around 0 64.3%

    \[\leadsto \color{blue}{d1 \cdot \left(37 + d3\right)} \]
  6. Step-by-step derivation
    1. +-commutative64.3%

      \[\leadsto d1 \cdot \color{blue}{\left(d3 + 37\right)} \]
    2. distribute-lft-in64.3%

      \[\leadsto \color{blue}{d1 \cdot d3 + d1 \cdot 37} \]
  7. Applied egg-rr64.3%

    \[\leadsto \color{blue}{d1 \cdot d3 + d1 \cdot 37} \]
  8. Taylor expanded in d3 around 0 22.7%

    \[\leadsto \color{blue}{37 \cdot d1} \]
  9. Step-by-step derivation
    1. *-commutative22.7%

      \[\leadsto \color{blue}{d1 \cdot 37} \]
  10. Simplified22.7%

    \[\leadsto \color{blue}{d1 \cdot 37} \]
  11. Final simplification22.7%

    \[\leadsto d1 \cdot 37 \]
  12. Add Preprocessing

Developer target: 100.0% accurate, 1.9× speedup?

\[\begin{array}{l} \\ d1 \cdot \left(\left(37 + d3\right) + d2\right) \end{array} \]
(FPCore (d1 d2 d3) :precision binary64 (* d1 (+ (+ 37.0 d3) d2)))
double code(double d1, double d2, double d3) {
	return d1 * ((37.0 + d3) + d2);
}
real(8) function code(d1, d2, d3)
    real(8), intent (in) :: d1
    real(8), intent (in) :: d2
    real(8), intent (in) :: d3
    code = d1 * ((37.0d0 + d3) + d2)
end function
public static double code(double d1, double d2, double d3) {
	return d1 * ((37.0 + d3) + d2);
}
def code(d1, d2, d3):
	return d1 * ((37.0 + d3) + d2)
function code(d1, d2, d3)
	return Float64(d1 * Float64(Float64(37.0 + d3) + d2))
end
function tmp = code(d1, d2, d3)
	tmp = d1 * ((37.0 + d3) + d2);
end
code[d1_, d2_, d3_] := N[(d1 * N[(N[(37.0 + d3), $MachinePrecision] + d2), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
d1 \cdot \left(\left(37 + d3\right) + d2\right)
\end{array}

Reproduce

?
herbie shell --seed 2024044 
(FPCore (d1 d2 d3)
  :name "FastMath dist3"
  :precision binary64

  :herbie-target
  (* d1 (+ (+ 37.0 d3) d2))

  (+ (+ (* d1 d2) (* (+ d3 5.0) d1)) (* d1 32.0)))