FastMath dist3

Percentage Accurate: 97.9% → 100.0%
Time: 3.5s
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 98.8%

    \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
  2. Step-by-step derivation
    1. cancel-sign-sub98.8%

      \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
    2. +-commutative98.8%

      \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
    3. *-commutative98.8%

      \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
    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. Final simplification100.0%

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

Alternative 2: 63.2% accurate, 2.6× speedup?

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

\\
d1 \cdot \left(d2 + 37\right)
\end{array}
Derivation
  1. Initial program 98.8%

    \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
  2. Step-by-step derivation
    1. cancel-sign-sub98.8%

      \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
    2. +-commutative98.8%

      \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
    3. *-commutative98.8%

      \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
    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 0 62.9%

    \[\leadsto \color{blue}{d1 \cdot \left(37 + d2\right)} \]
  6. Final simplification62.9%

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

Alternative 3: 63.7% accurate, 2.6× speedup?

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

\\
d1 \cdot \left(d3 + 37\right)
\end{array}
Derivation
  1. Initial program 98.8%

    \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
  2. Step-by-step derivation
    1. cancel-sign-sub98.8%

      \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
    2. +-commutative98.8%

      \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
    3. *-commutative98.8%

      \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
    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 66.9%

    \[\leadsto \color{blue}{d1 \cdot \left(37 + d3\right)} \]
  6. Final simplification66.9%

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

Alternative 4: 25.9% 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 98.8%

    \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
  2. Add Preprocessing
  3. Taylor expanded in d3 around 0 62.9%

    \[\leadsto \color{blue}{\left(5 \cdot d1 + d1 \cdot d2\right)} + d1 \cdot 32 \]
  4. Step-by-step derivation
    1. +-commutative62.9%

      \[\leadsto \color{blue}{\left(d1 \cdot d2 + 5 \cdot d1\right)} + d1 \cdot 32 \]
    2. *-commutative62.9%

      \[\leadsto \left(d1 \cdot d2 + \color{blue}{d1 \cdot 5}\right) + d1 \cdot 32 \]
    3. distribute-lft-out62.9%

      \[\leadsto \color{blue}{d1 \cdot \left(d2 + 5\right)} + d1 \cdot 32 \]
  5. Simplified62.9%

    \[\leadsto \color{blue}{d1 \cdot \left(d2 + 5\right)} + d1 \cdot 32 \]
  6. Taylor expanded in d2 around 0 29.5%

    \[\leadsto \color{blue}{5 \cdot d1 + 32 \cdot d1} \]
  7. Step-by-step derivation
    1. distribute-rgt-out29.6%

      \[\leadsto \color{blue}{d1 \cdot \left(5 + 32\right)} \]
    2. metadata-eval29.6%

      \[\leadsto d1 \cdot \color{blue}{37} \]
  8. Simplified29.6%

    \[\leadsto \color{blue}{d1 \cdot 37} \]
  9. Final simplification29.6%

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

Alternative 5: 40.0% accurate, 4.3× speedup?

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

\\
d1 \cdot d2
\end{array}
Derivation
  1. Initial program 98.8%

    \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
  2. Step-by-step derivation
    1. cancel-sign-sub98.8%

      \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
    2. +-commutative98.8%

      \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
    3. *-commutative98.8%

      \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
    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 inf 36.4%

    \[\leadsto \color{blue}{d1 \cdot d2} \]
  6. Final simplification36.4%

    \[\leadsto d1 \cdot d2 \]
  7. Add Preprocessing

Alternative 6: 40.4% accurate, 4.3× speedup?

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

\\
d1 \cdot d3
\end{array}
Derivation
  1. Initial program 98.8%

    \[\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) + d1 \cdot 32 \]
  2. Step-by-step derivation
    1. cancel-sign-sub98.8%

      \[\leadsto \color{blue}{\left(d1 \cdot d2 + \left(d3 + 5\right) \cdot d1\right) - \left(-d1\right) \cdot 32} \]
    2. +-commutative98.8%

      \[\leadsto \color{blue}{\left(\left(d3 + 5\right) \cdot d1 + d1 \cdot d2\right)} - \left(-d1\right) \cdot 32 \]
    3. *-commutative98.8%

      \[\leadsto \left(\color{blue}{d1 \cdot \left(d3 + 5\right)} + d1 \cdot d2\right) - \left(-d1\right) \cdot 32 \]
    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 39.6%

    \[\leadsto \color{blue}{d1 \cdot d3} \]
  6. Final simplification39.6%

    \[\leadsto d1 \cdot d3 \]
  7. 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 2024033 
(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)))