{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2}{\left(b \cdot \cos \left(angle \cdot \left(\pi \cdot 0.005555555555555556\right)\right)\right)}^{2} + {\left(a \cdot \sin \left(\frac{1}{\sqrt{180}} \cdot \left(\pi \cdot \frac{angle}{\sqrt{180}}\right)\right)\right)}^{2}(FPCore (a b angle) :precision binary64 (+ (pow (* a (sin (* (/ angle 180.0) PI))) 2.0) (pow (* b (cos (* (/ angle 180.0) PI))) 2.0)))
(FPCore (a b angle) :precision binary64 (+ (pow (* b (cos (* angle (* PI 0.005555555555555556)))) 2.0) (pow (* a (sin (* (/ 1.0 (sqrt 180.0)) (* PI (/ angle (sqrt 180.0)))))) 2.0)))
double code(double a, double b, double angle) {
return pow((a * sin((angle / 180.0) * ((double) M_PI))), 2.0) + pow((b * cos((angle / 180.0) * ((double) M_PI))), 2.0);
}
double code(double a, double b, double angle) {
return pow((b * cos(angle * (((double) M_PI) * 0.005555555555555556))), 2.0) + pow((a * sin((1.0 / sqrt(180.0)) * (((double) M_PI) * (angle / sqrt(180.0))))), 2.0);
}















Bits error versus a















Bits error versus b















Bits error versus angle
Results
| Alternative 1 | |
|---|---|
| Error | 19.8 |
| Cost | 26688 |
| Alternative 2 | |
|---|---|
| Error | 19.8 |
| Cost | 26688 |
| Alternative 3 | |
|---|---|
| Error | 19.8 |
| Cost | 26688 |
| Alternative 4 | |
|---|---|
| Error | 19.9 |
| Cost | 19904 |
| Alternative 5 | |
|---|---|
| Error | 19.9 |
| Cost | 19904 |
| Alternative 6 | |
|---|---|
| Error | 23.8 |
| Cost | 14402 |
| Alternative 7 | |
|---|---|
| Error | 23.8 |
| Cost | 14402 |
| Alternative 8 | |
|---|---|
| Error | 23.8 |
| Cost | 8450 |
| Alternative 9 | |
|---|---|
| Error | 23.8 |
| Cost | 8194 |
| Alternative 10 | |
|---|---|
| Error | 23.8 |
| Cost | 8066 |
| Alternative 11 | |
|---|---|
| Error | 52.8 |
| Cost | 64 |
| Alternative 12 | |
|---|---|
| Error | 60.8 |
| Cost | 64 |


Initial program 19.8
rmApplied add-sqr-sqrt_binary64_10020.0
Applied *-un-lft-identity_binary64_7820.0
Applied times-frac_binary64_8419.8
Applied associate-*l*_binary64_1919.8
Simplified19.8
rmApplied div-inv_binary64_7519.8
Applied associate-*l*_binary64_1919.8
Simplified19.8
rmApplied pow1_binary64_13919.8
Simplified19.8
Final simplification19.8
herbie shell --seed 2021040
(FPCore (a b angle)
:name "ab-angle->ABCF A"
:precision binary64
(+ (pow (* a (sin (* (/ angle 180.0) PI))) 2.0) (pow (* b (cos (* (/ angle 180.0) PI))) 2.0)))