Average Error: 29.4 → 0.0
Time: 1.4m
Precision: 64
\[\frac{\left(\left(\left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.007264418199999999985194687468492702464573 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)}{\left(\left(\left(\left(\left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + 0.2909738639000000182122107617033179849386 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.06945557609999999937322456844412954524159 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 0.01400054419999999938406531896362139377743 \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot \left(\left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)} \cdot x\]
\[\begin{array}{l} \mathbf{if}\;x \le -4225810792053910.5 \lor \neg \left(x \le 789.2064757894585227404604665935039520264\right):\\ \;\;\;\;\frac{0.1529819634592932686700805788859724998474}{{x}^{5}} + \left(\frac{0.5}{x} + \frac{0.2514179000665375252054900556686334311962}{{x}^{3}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\left(\left(\left(0.2909738639000000182122107617033179849386 \cdot {x}^{4} + \left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right)\right) + {x}^{8} \cdot 0.01400054419999999938406531896362139377743\right) + 0.06945557609999999937322456844412954524159 \cdot {x}^{6}\right) + \left(\left({x}^{8} \cdot \left(x \cdot x\right)\right) \cdot 8.327945000000000442749725770852364803432 \cdot 10^{-4} + {\left({x}^{4}\right)}^{3} \cdot \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right)\right)} \cdot \left(\left({x}^{8} \cdot \left(x \cdot x\right)\right) \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4} + \left(\left(0.007264418199999999985194687468492702464573 \cdot {\left(x \cdot x\right)}^{3} + \left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot {x}^{4}\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot {x}^{8}\right)\right)\\ \end{array}\]
\frac{\left(\left(\left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.007264418199999999985194687468492702464573 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)}{\left(\left(\left(\left(\left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + 0.2909738639000000182122107617033179849386 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.06945557609999999937322456844412954524159 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 0.01400054419999999938406531896362139377743 \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot \left(\left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)} \cdot x
\begin{array}{l}
\mathbf{if}\;x \le -4225810792053910.5 \lor \neg \left(x \le 789.2064757894585227404604665935039520264\right):\\
\;\;\;\;\frac{0.1529819634592932686700805788859724998474}{{x}^{5}} + \left(\frac{0.5}{x} + \frac{0.2514179000665375252054900556686334311962}{{x}^{3}}\right)\\

\mathbf{else}:\\
\;\;\;\;\frac{x}{\left(\left(\left(0.2909738639000000182122107617033179849386 \cdot {x}^{4} + \left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right)\right) + {x}^{8} \cdot 0.01400054419999999938406531896362139377743\right) + 0.06945557609999999937322456844412954524159 \cdot {x}^{6}\right) + \left(\left({x}^{8} \cdot \left(x \cdot x\right)\right) \cdot 8.327945000000000442749725770852364803432 \cdot 10^{-4} + {\left({x}^{4}\right)}^{3} \cdot \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right)\right)} \cdot \left(\left({x}^{8} \cdot \left(x \cdot x\right)\right) \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4} + \left(\left(0.007264418199999999985194687468492702464573 \cdot {\left(x \cdot x\right)}^{3} + \left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot {x}^{4}\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot {x}^{8}\right)\right)\\

\end{array}
double f(double x) {
        double r102197 = 1.0;
        double r102198 = 0.1049934947;
        double r102199 = x;
        double r102200 = r102199 * r102199;
        double r102201 = r102198 * r102200;
        double r102202 = r102197 + r102201;
        double r102203 = 0.0424060604;
        double r102204 = r102200 * r102200;
        double r102205 = r102203 * r102204;
        double r102206 = r102202 + r102205;
        double r102207 = 0.0072644182;
        double r102208 = r102204 * r102200;
        double r102209 = r102207 * r102208;
        double r102210 = r102206 + r102209;
        double r102211 = 0.0005064034;
        double r102212 = r102208 * r102200;
        double r102213 = r102211 * r102212;
        double r102214 = r102210 + r102213;
        double r102215 = 0.0001789971;
        double r102216 = r102212 * r102200;
        double r102217 = r102215 * r102216;
        double r102218 = r102214 + r102217;
        double r102219 = 0.7715471019;
        double r102220 = r102219 * r102200;
        double r102221 = r102197 + r102220;
        double r102222 = 0.2909738639;
        double r102223 = r102222 * r102204;
        double r102224 = r102221 + r102223;
        double r102225 = 0.0694555761;
        double r102226 = r102225 * r102208;
        double r102227 = r102224 + r102226;
        double r102228 = 0.0140005442;
        double r102229 = r102228 * r102212;
        double r102230 = r102227 + r102229;
        double r102231 = 0.0008327945;
        double r102232 = r102231 * r102216;
        double r102233 = r102230 + r102232;
        double r102234 = 2.0;
        double r102235 = r102234 * r102215;
        double r102236 = r102216 * r102200;
        double r102237 = r102235 * r102236;
        double r102238 = r102233 + r102237;
        double r102239 = r102218 / r102238;
        double r102240 = r102239 * r102199;
        return r102240;
}

double f(double x) {
        double r102241 = x;
        double r102242 = -4225810792053910.5;
        bool r102243 = r102241 <= r102242;
        double r102244 = 789.2064757894585;
        bool r102245 = r102241 <= r102244;
        double r102246 = !r102245;
        bool r102247 = r102243 || r102246;
        double r102248 = 0.15298196345929327;
        double r102249 = 5.0;
        double r102250 = pow(r102241, r102249);
        double r102251 = r102248 / r102250;
        double r102252 = 0.5;
        double r102253 = r102252 / r102241;
        double r102254 = 0.2514179000665375;
        double r102255 = 3.0;
        double r102256 = pow(r102241, r102255);
        double r102257 = r102254 / r102256;
        double r102258 = r102253 + r102257;
        double r102259 = r102251 + r102258;
        double r102260 = 0.2909738639;
        double r102261 = 4.0;
        double r102262 = pow(r102241, r102261);
        double r102263 = r102260 * r102262;
        double r102264 = 1.0;
        double r102265 = 0.7715471019;
        double r102266 = r102241 * r102241;
        double r102267 = r102265 * r102266;
        double r102268 = r102264 + r102267;
        double r102269 = r102263 + r102268;
        double r102270 = 8.0;
        double r102271 = pow(r102241, r102270);
        double r102272 = 0.0140005442;
        double r102273 = r102271 * r102272;
        double r102274 = r102269 + r102273;
        double r102275 = 0.0694555761;
        double r102276 = 6.0;
        double r102277 = pow(r102241, r102276);
        double r102278 = r102275 * r102277;
        double r102279 = r102274 + r102278;
        double r102280 = r102271 * r102266;
        double r102281 = 0.0008327945;
        double r102282 = r102280 * r102281;
        double r102283 = pow(r102262, r102255);
        double r102284 = 2.0;
        double r102285 = 0.0001789971;
        double r102286 = r102284 * r102285;
        double r102287 = r102283 * r102286;
        double r102288 = r102282 + r102287;
        double r102289 = r102279 + r102288;
        double r102290 = r102241 / r102289;
        double r102291 = r102280 * r102285;
        double r102292 = 0.0072644182;
        double r102293 = pow(r102266, r102255);
        double r102294 = r102292 * r102293;
        double r102295 = 0.1049934947;
        double r102296 = r102295 * r102266;
        double r102297 = r102264 + r102296;
        double r102298 = 0.0424060604;
        double r102299 = r102298 * r102262;
        double r102300 = r102297 + r102299;
        double r102301 = r102294 + r102300;
        double r102302 = 0.0005064034;
        double r102303 = r102302 * r102271;
        double r102304 = r102301 + r102303;
        double r102305 = r102291 + r102304;
        double r102306 = r102290 * r102305;
        double r102307 = r102247 ? r102259 : r102306;
        return r102307;
}

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Split input into 2 regimes
  2. if x < -4225810792053910.5 or 789.2064757894585 < x

    1. Initial program 60.4

      \[\frac{\left(\left(\left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.007264418199999999985194687468492702464573 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)}{\left(\left(\left(\left(\left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + 0.2909738639000000182122107617033179849386 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.06945557609999999937322456844412954524159 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 0.01400054419999999938406531896362139377743 \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot \left(\left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)} \cdot x\]
    2. Taylor expanded around inf 0.0

      \[\leadsto \color{blue}{0.1529819634592932686700805788859724998474 \cdot \frac{1}{{x}^{5}} + \left(0.2514179000665375252054900556686334311962 \cdot \frac{1}{{x}^{3}} + 0.5 \cdot \frac{1}{x}\right)}\]
    3. Simplified0.0

      \[\leadsto \color{blue}{\frac{0.1529819634592932686700805788859724998474}{{x}^{5}} + \left(\frac{0.2514179000665375252054900556686334311962}{{x}^{3}} + \frac{0.5}{x}\right)}\]

    if -4225810792053910.5 < x < 789.2064757894585

    1. Initial program 0.0

      \[\frac{\left(\left(\left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.007264418199999999985194687468492702464573 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)}{\left(\left(\left(\left(\left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + 0.2909738639000000182122107617033179849386 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.06945557609999999937322456844412954524159 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 0.01400054419999999938406531896362139377743 \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot \left(\left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)} \cdot x\]
    2. Using strategy rm
    3. Applied *-un-lft-identity0.0

      \[\leadsto \frac{\left(\left(\left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.007264418199999999985194687468492702464573 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)}{\left(\left(\left(\left(\left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + 0.2909738639000000182122107617033179849386 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.06945557609999999937322456844412954524159 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 0.01400054419999999938406531896362139377743 \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot \left(\left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)} \cdot \color{blue}{\left(1 \cdot x\right)}\]
    4. Applied associate-*r*0.0

      \[\leadsto \color{blue}{\left(\frac{\left(\left(\left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.007264418199999999985194687468492702464573 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)}{\left(\left(\left(\left(\left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + 0.2909738639000000182122107617033179849386 \cdot \left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right)\right) + 0.06945557609999999937322456844412954524159 \cdot \left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 0.01400054419999999938406531896362139377743 \cdot \left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + 8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot \left(\left(\left(\left(\left(\left(x \cdot x\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right) \cdot \left(x \cdot x\right)\right)} \cdot 1\right) \cdot x}\]
    5. Simplified0.0

      \[\leadsto \color{blue}{\frac{\left(\left(0.007264418199999999985194687468492702464573 \cdot {\left(x \cdot x\right)}^{3} + \left(\left(1 + \left(x \cdot x\right) \cdot 0.1049934946999999951788851149103720672429\right) + {x}^{4} \cdot 0.04240606040000000076517494562722276896238\right)\right) + {x}^{\left(2 \cdot 4\right)} \cdot 5.064034000000000243502107366566633572802 \cdot 10^{-4}\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left({x}^{\left(2 \cdot 4\right)} \cdot \left(x \cdot x\right)\right)}{\left(\left(\left(0.2909738639000000182122107617033179849386 \cdot {x}^{4} + 1\right) + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + \left(0.06945557609999999937322456844412954524159 \cdot {\left(x \cdot x\right)}^{3} + {x}^{\left(2 \cdot 4\right)} \cdot 0.01400054419999999938406531896362139377743\right)\right) + \left(8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left({x}^{\left(2 \cdot 4\right)} \cdot \left(x \cdot x\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot {\left({x}^{4}\right)}^{3}\right)}} \cdot x\]
    6. Using strategy rm
    7. Applied div-inv0.0

      \[\leadsto \color{blue}{\left(\left(\left(\left(0.007264418199999999985194687468492702464573 \cdot {\left(x \cdot x\right)}^{3} + \left(\left(1 + \left(x \cdot x\right) \cdot 0.1049934946999999951788851149103720672429\right) + {x}^{4} \cdot 0.04240606040000000076517494562722276896238\right)\right) + {x}^{\left(2 \cdot 4\right)} \cdot 5.064034000000000243502107366566633572802 \cdot 10^{-4}\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left({x}^{\left(2 \cdot 4\right)} \cdot \left(x \cdot x\right)\right)\right) \cdot \frac{1}{\left(\left(\left(0.2909738639000000182122107617033179849386 \cdot {x}^{4} + 1\right) + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + \left(0.06945557609999999937322456844412954524159 \cdot {\left(x \cdot x\right)}^{3} + {x}^{\left(2 \cdot 4\right)} \cdot 0.01400054419999999938406531896362139377743\right)\right) + \left(8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left({x}^{\left(2 \cdot 4\right)} \cdot \left(x \cdot x\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot {\left({x}^{4}\right)}^{3}\right)}\right)} \cdot x\]
    8. Applied associate-*l*0.0

      \[\leadsto \color{blue}{\left(\left(\left(0.007264418199999999985194687468492702464573 \cdot {\left(x \cdot x\right)}^{3} + \left(\left(1 + \left(x \cdot x\right) \cdot 0.1049934946999999951788851149103720672429\right) + {x}^{4} \cdot 0.04240606040000000076517494562722276896238\right)\right) + {x}^{\left(2 \cdot 4\right)} \cdot 5.064034000000000243502107366566633572802 \cdot 10^{-4}\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left({x}^{\left(2 \cdot 4\right)} \cdot \left(x \cdot x\right)\right)\right) \cdot \left(\frac{1}{\left(\left(\left(0.2909738639000000182122107617033179849386 \cdot {x}^{4} + 1\right) + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right) + \left(0.06945557609999999937322456844412954524159 \cdot {\left(x \cdot x\right)}^{3} + {x}^{\left(2 \cdot 4\right)} \cdot 0.01400054419999999938406531896362139377743\right)\right) + \left(8.327945000000000442749725770852364803432 \cdot 10^{-4} \cdot \left({x}^{\left(2 \cdot 4\right)} \cdot \left(x \cdot x\right)\right) + \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right) \cdot {\left({x}^{4}\right)}^{3}\right)} \cdot x\right)}\]
    9. Simplified0.0

      \[\leadsto \left(\left(\left(0.007264418199999999985194687468492702464573 \cdot {\left(x \cdot x\right)}^{3} + \left(\left(1 + \left(x \cdot x\right) \cdot 0.1049934946999999951788851149103720672429\right) + {x}^{4} \cdot 0.04240606040000000076517494562722276896238\right)\right) + {x}^{\left(2 \cdot 4\right)} \cdot 5.064034000000000243502107366566633572802 \cdot 10^{-4}\right) + 1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot \left({x}^{\left(2 \cdot 4\right)} \cdot \left(x \cdot x\right)\right)\right) \cdot \color{blue}{\frac{x}{\left(\left({x}^{8} \cdot \left(x \cdot x\right)\right) \cdot 8.327945000000000442749725770852364803432 \cdot 10^{-4} + \left(1.789971000000000009994005623070734145585 \cdot 10^{-4} \cdot 2\right) \cdot {\left({x}^{4}\right)}^{3}\right) + \left(0.06945557609999999937322456844412954524159 \cdot {x}^{6} + \left({x}^{8} \cdot 0.01400054419999999938406531896362139377743 + \left(\left(\left(x \cdot x\right) \cdot 0.7715471018999999763821051601553335785866 + 1\right) + 0.2909738639000000182122107617033179849386 \cdot {x}^{4}\right)\right)\right)}}\]
  3. Recombined 2 regimes into one program.
  4. Final simplification0.0

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \le -4225810792053910.5 \lor \neg \left(x \le 789.2064757894585227404604665935039520264\right):\\ \;\;\;\;\frac{0.1529819634592932686700805788859724998474}{{x}^{5}} + \left(\frac{0.5}{x} + \frac{0.2514179000665375252054900556686334311962}{{x}^{3}}\right)\\ \mathbf{else}:\\ \;\;\;\;\frac{x}{\left(\left(\left(0.2909738639000000182122107617033179849386 \cdot {x}^{4} + \left(1 + 0.7715471018999999763821051601553335785866 \cdot \left(x \cdot x\right)\right)\right) + {x}^{8} \cdot 0.01400054419999999938406531896362139377743\right) + 0.06945557609999999937322456844412954524159 \cdot {x}^{6}\right) + \left(\left({x}^{8} \cdot \left(x \cdot x\right)\right) \cdot 8.327945000000000442749725770852364803432 \cdot 10^{-4} + {\left({x}^{4}\right)}^{3} \cdot \left(2 \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4}\right)\right)} \cdot \left(\left({x}^{8} \cdot \left(x \cdot x\right)\right) \cdot 1.789971000000000009994005623070734145585 \cdot 10^{-4} + \left(\left(0.007264418199999999985194687468492702464573 \cdot {\left(x \cdot x\right)}^{3} + \left(\left(1 + 0.1049934946999999951788851149103720672429 \cdot \left(x \cdot x\right)\right) + 0.04240606040000000076517494562722276896238 \cdot {x}^{4}\right)\right) + 5.064034000000000243502107366566633572802 \cdot 10^{-4} \cdot {x}^{8}\right)\right)\\ \end{array}\]

Reproduce

herbie shell --seed 2019194 
(FPCore (x)
  :name "Jmat.Real.dawson"
  (* (/ (+ (+ (+ (+ (+ 1.0 (* 0.1049934947 (* x x))) (* 0.0424060604 (* (* x x) (* x x)))) (* 0.0072644182 (* (* (* x x) (* x x)) (* x x)))) (* 0.0005064034 (* (* (* (* x x) (* x x)) (* x x)) (* x x)))) (* 0.0001789971 (* (* (* (* (* x x) (* x x)) (* x x)) (* x x)) (* x x)))) (+ (+ (+ (+ (+ (+ 1.0 (* 0.7715471019 (* x x))) (* 0.2909738639 (* (* x x) (* x x)))) (* 0.0694555761 (* (* (* x x) (* x x)) (* x x)))) (* 0.0140005442 (* (* (* (* x x) (* x x)) (* x x)) (* x x)))) (* 0.0008327945 (* (* (* (* (* x x) (* x x)) (* x x)) (* x x)) (* x x)))) (* (* 2.0 0.0001789971) (* (* (* (* (* (* x x) (* x x)) (* x x)) (* x x)) (* x x)) (* x x))))) x))