Integrand size = 19, antiderivative size = 312 \[ \int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {1+x^3}} \, dx=-2 \sqrt {\frac {a}{x^3}} x \sqrt {1+x^3}+\frac {2 \left (1+\sqrt {3}\right ) \sqrt {\frac {a}{x^3}} x^2 \sqrt {1+x^3}}{1+\left (1+\sqrt {3}\right ) x}-\frac {2 \sqrt [4]{3} \sqrt {\frac {a}{x^3}} x^2 (1+x) \sqrt {\frac {1-x+x^2}{\left (1+\left (1+\sqrt {3}\right ) x\right )^2}} E\left (\arccos \left (\frac {1+\left (1-\sqrt {3}\right ) x}{1+\left (1+\sqrt {3}\right ) x}\right )|\frac {1}{4} \left (2+\sqrt {3}\right )\right )}{\sqrt {\frac {x (1+x)}{\left (1+\left (1+\sqrt {3}\right ) x\right )^2}} \sqrt {1+x^3}}-\frac {\left (1-\sqrt {3}\right ) \sqrt {\frac {a}{x^3}} x^2 (1+x) \sqrt {\frac {1-x+x^2}{\left (1+\left (1+\sqrt {3}\right ) x\right )^2}} \operatorname {EllipticF}\left (\arccos \left (\frac {1+\left (1-\sqrt {3}\right ) x}{1+\left (1+\sqrt {3}\right ) x}\right ),\frac {1}{4} \left (2+\sqrt {3}\right )\right )}{\sqrt [4]{3} \sqrt {\frac {x (1+x)}{\left (1+\left (1+\sqrt {3}\right ) x\right )^2}} \sqrt {1+x^3}} \]
-2*x*(a/x^3)^(1/2)*(x^3+1)^(1/2)+2*x^2*(1+3^(1/2))*(a/x^3)^(1/2)*(x^3+1)^( 1/2)/(1+x*(1+3^(1/2)))-2*3^(1/4)*x^2*(1+x)*((1+x*(1-3^(1/2)))^2/(1+x*(1+3^ (1/2)))^2)^(1/2)/(1+x*(1-3^(1/2)))*(1+x*(1+3^(1/2)))*EllipticE((1-(1+x*(1- 3^(1/2)))^2/(1+x*(1+3^(1/2)))^2)^(1/2),1/4*6^(1/2)+1/4*2^(1/2))*(a/x^3)^(1 /2)*((x^2-x+1)/(1+x*(1+3^(1/2)))^2)^(1/2)/(x^3+1)^(1/2)/(x*(1+x)/(1+x*(1+3 ^(1/2)))^2)^(1/2)-1/3*x^2*(1+x)*((1+x*(1-3^(1/2)))^2/(1+x*(1+3^(1/2)))^2)^ (1/2)/(1+x*(1-3^(1/2)))*(1+x*(1+3^(1/2)))*EllipticF((1-(1+x*(1-3^(1/2)))^2 /(1+x*(1+3^(1/2)))^2)^(1/2),1/4*6^(1/2)+1/4*2^(1/2))*(1-3^(1/2))*(a/x^3)^( 1/2)*((x^2-x+1)/(1+x*(1+3^(1/2)))^2)^(1/2)*3^(3/4)/(x^3+1)^(1/2)/(x*(1+x)/ (1+x*(1+3^(1/2)))^2)^(1/2)
Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.
Time = 10.01 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.09 \[ \int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {1+x^3}} \, dx=-2 \sqrt {\frac {a}{x^3}} x \operatorname {Hypergeometric2F1}\left (-\frac {1}{6},\frac {1}{2},\frac {5}{6},-x^3\right ) \]
Time = 0.43 (sec) , antiderivative size = 310, normalized size of antiderivative = 0.99, number of steps used = 8, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.368, Rules used = {34, 847, 851, 837, 25, 766, 2420}
Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.
\(\displaystyle \int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {x^3+1}} \, dx\) |
\(\Big \downarrow \) 34 |
\(\displaystyle x^{3/2} \sqrt {\frac {a}{x^3}} \int \frac {1}{x^{3/2} \sqrt {x^3+1}}dx\) |
\(\Big \downarrow \) 847 |
\(\displaystyle x^{3/2} \sqrt {\frac {a}{x^3}} \left (2 \int \frac {x^{3/2}}{\sqrt {x^3+1}}dx-\frac {2 \sqrt {x^3+1}}{\sqrt {x}}\right )\) |
\(\Big \downarrow \) 851 |
\(\displaystyle x^{3/2} \sqrt {\frac {a}{x^3}} \left (4 \int \frac {x^2}{\sqrt {x^3+1}}d\sqrt {x}-\frac {2 \sqrt {x^3+1}}{\sqrt {x}}\right )\) |
\(\Big \downarrow \) 837 |
\(\displaystyle x^{3/2} \sqrt {\frac {a}{x^3}} \left (4 \left (-\frac {1}{2} \left (1-\sqrt {3}\right ) \int \frac {1}{\sqrt {x^3+1}}d\sqrt {x}-\frac {1}{2} \int -\frac {2 x^2-\sqrt {3}+1}{\sqrt {x^3+1}}d\sqrt {x}\right )-\frac {2 \sqrt {x^3+1}}{\sqrt {x}}\right )\) |
\(\Big \downarrow \) 25 |
\(\displaystyle x^{3/2} \sqrt {\frac {a}{x^3}} \left (4 \left (\frac {1}{2} \int \frac {2 x^2-\sqrt {3}+1}{\sqrt {x^3+1}}d\sqrt {x}-\frac {1}{2} \left (1-\sqrt {3}\right ) \int \frac {1}{\sqrt {x^3+1}}d\sqrt {x}\right )-\frac {2 \sqrt {x^3+1}}{\sqrt {x}}\right )\) |
\(\Big \downarrow \) 766 |
\(\displaystyle x^{3/2} \sqrt {\frac {a}{x^3}} \left (4 \left (\frac {1}{2} \int \frac {2 x^2-\sqrt {3}+1}{\sqrt {x^3+1}}d\sqrt {x}-\frac {\left (1-\sqrt {3}\right ) \sqrt {x} (x+1) \sqrt {\frac {x^2-x+1}{\left (\left (1+\sqrt {3}\right ) x+1\right )^2}} \operatorname {EllipticF}\left (\arccos \left (\frac {\left (1-\sqrt {3}\right ) x+1}{\left (1+\sqrt {3}\right ) x+1}\right ),\frac {1}{4} \left (2+\sqrt {3}\right )\right )}{4 \sqrt [4]{3} \sqrt {\frac {x (x+1)}{\left (\left (1+\sqrt {3}\right ) x+1\right )^2}} \sqrt {x^3+1}}\right )-\frac {2 \sqrt {x^3+1}}{\sqrt {x}}\right )\) |
\(\Big \downarrow \) 2420 |
\(\displaystyle x^{3/2} \sqrt {\frac {a}{x^3}} \left (4 \left (\frac {1}{2} \left (\frac {\left (1+\sqrt {3}\right ) \sqrt {x} \sqrt {x^3+1}}{\left (1+\sqrt {3}\right ) x+1}-\frac {\sqrt [4]{3} \sqrt {x} (x+1) \sqrt {\frac {x^2-x+1}{\left (\left (1+\sqrt {3}\right ) x+1\right )^2}} E\left (\arccos \left (\frac {\left (1-\sqrt {3}\right ) x+1}{\left (1+\sqrt {3}\right ) x+1}\right )|\frac {1}{4} \left (2+\sqrt {3}\right )\right )}{\sqrt {\frac {x (x+1)}{\left (\left (1+\sqrt {3}\right ) x+1\right )^2}} \sqrt {x^3+1}}\right )-\frac {\left (1-\sqrt {3}\right ) \sqrt {x} (x+1) \sqrt {\frac {x^2-x+1}{\left (\left (1+\sqrt {3}\right ) x+1\right )^2}} \operatorname {EllipticF}\left (\arccos \left (\frac {\left (1-\sqrt {3}\right ) x+1}{\left (1+\sqrt {3}\right ) x+1}\right ),\frac {1}{4} \left (2+\sqrt {3}\right )\right )}{4 \sqrt [4]{3} \sqrt {\frac {x (x+1)}{\left (\left (1+\sqrt {3}\right ) x+1\right )^2}} \sqrt {x^3+1}}\right )-\frac {2 \sqrt {x^3+1}}{\sqrt {x}}\right )\) |
Sqrt[a/x^3]*x^(3/2)*((-2*Sqrt[1 + x^3])/Sqrt[x] + 4*((((1 + Sqrt[3])*Sqrt[ x]*Sqrt[1 + x^3])/(1 + (1 + Sqrt[3])*x) - (3^(1/4)*Sqrt[x]*(1 + x)*Sqrt[(1 - x + x^2)/(1 + (1 + Sqrt[3])*x)^2]*EllipticE[ArcCos[(1 + (1 - Sqrt[3])*x )/(1 + (1 + Sqrt[3])*x)], (2 + Sqrt[3])/4])/(Sqrt[(x*(1 + x))/(1 + (1 + Sq rt[3])*x)^2]*Sqrt[1 + x^3]))/2 - ((1 - Sqrt[3])*Sqrt[x]*(1 + x)*Sqrt[(1 - x + x^2)/(1 + (1 + Sqrt[3])*x)^2]*EllipticF[ArcCos[(1 + (1 - Sqrt[3])*x)/( 1 + (1 + Sqrt[3])*x)], (2 + Sqrt[3])/4])/(4*3^(1/4)*Sqrt[(x*(1 + x))/(1 + (1 + Sqrt[3])*x)^2]*Sqrt[1 + x^3])))
3.4.91.3.1 Defintions of rubi rules used
Int[(u_.)*((a_.)*(x_)^(m_))^(p_), x_Symbol] :> Simp[a^IntPart[p]*((a*x^m)^F racPart[p]/x^(m*FracPart[p])) Int[u*x^(m*p), x], x] /; FreeQ[{a, m, p}, x ] && !IntegerQ[p]
Int[1/Sqrt[(a_) + (b_.)*(x_)^6], x_Symbol] :> With[{r = Numer[Rt[b/a, 3]], s = Denom[Rt[b/a, 3]]}, Simp[x*(s + r*x^2)*(Sqrt[(s^2 - r*s*x^2 + r^2*x^4)/ (s + (1 + Sqrt[3])*r*x^2)^2]/(2*3^(1/4)*s*Sqrt[a + b*x^6]*Sqrt[r*x^2*((s + r*x^2)/(s + (1 + Sqrt[3])*r*x^2)^2)]))*EllipticF[ArcCos[(s + (1 - Sqrt[3])* r*x^2)/(s + (1 + Sqrt[3])*r*x^2)], (2 + Sqrt[3])/4], x]] /; FreeQ[{a, b}, x ]
Int[(x_)^4/Sqrt[(a_) + (b_.)*(x_)^6], x_Symbol] :> With[{r = Numer[Rt[b/a, 3]], s = Denom[Rt[b/a, 3]]}, Simp[(Sqrt[3] - 1)*(s^2/(2*r^2)) Int[1/Sqrt[ a + b*x^6], x], x] - Simp[1/(2*r^2) Int[((Sqrt[3] - 1)*s^2 - 2*r^2*x^4)/S qrt[a + b*x^6], x], x]] /; FreeQ[{a, b}, x]
Int[((c_.)*(x_))^(m_)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[(c*x )^(m + 1)*((a + b*x^n)^(p + 1)/(a*c*(m + 1))), x] - Simp[b*((m + n*(p + 1) + 1)/(a*c^n*(m + 1))) Int[(c*x)^(m + n)*(a + b*x^n)^p, x], x] /; FreeQ[{a , b, c, p}, x] && IGtQ[n, 0] && LtQ[m, -1] && IntBinomialQ[a, b, c, n, m, p , x]
Int[((c_.)*(x_))^(m_)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> With[{k = Denominator[m]}, Simp[k/c Subst[Int[x^(k*(m + 1) - 1)*(a + b*(x^(k*n)/c^ n))^p, x], x, (c*x)^(1/k)], x]] /; FreeQ[{a, b, c, p}, x] && IGtQ[n, 0] && FractionQ[m] && IntBinomialQ[a, b, c, n, m, p, x]
Int[((c_) + (d_.)*(x_)^4)/Sqrt[(a_) + (b_.)*(x_)^6], x_Symbol] :> With[{r = Numer[Rt[b/a, 3]], s = Denom[Rt[b/a, 3]]}, Simp[(1 + Sqrt[3])*d*s^3*x*(Sqr t[a + b*x^6]/(2*a*r^2*(s + (1 + Sqrt[3])*r*x^2))), x] - Simp[3^(1/4)*d*s*x* (s + r*x^2)*(Sqrt[(s^2 - r*s*x^2 + r^2*x^4)/(s + (1 + Sqrt[3])*r*x^2)^2]/(2 *r^2*Sqrt[(r*x^2*(s + r*x^2))/(s + (1 + Sqrt[3])*r*x^2)^2]*Sqrt[a + b*x^6]) )*EllipticE[ArcCos[(s + (1 - Sqrt[3])*r*x^2)/(s + (1 + Sqrt[3])*r*x^2)], (2 + Sqrt[3])/4], x]] /; FreeQ[{a, b, c, d}, x] && EqQ[2*Rt[b/a, 3]^2*c - (1 - Sqrt[3])*d, 0]
Result contains higher order function than in optimal. Order 5 vs. order 4.
Time = 2.24 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.07
method | result | size |
meijerg | \(-2 \sqrt {\frac {a}{x^{3}}}\, x {}_{2}^{}{\moversetsp {}{\mundersetsp {}{F_{1}^{}}}}\left (-\frac {1}{6},\frac {1}{2};\frac {5}{6};-x^{3}\right )\) | \(22\) |
risch | \(-2 x \sqrt {\frac {a}{x^{3}}}\, \sqrt {x^{3}+1}+\frac {2 \left (x \left (x -\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) \left (x -\frac {1}{2}-\frac {i \sqrt {3}}{2}\right )+\left (-\frac {1}{2}-\frac {i \sqrt {3}}{2}\right ) \sqrt {\frac {\left (\frac {3}{2}+\frac {i \sqrt {3}}{2}\right ) x}{\left (\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) \left (x +1\right )}}\, \left (x +1\right )^{2} \sqrt {-\frac {x -\frac {1}{2}+\frac {i \sqrt {3}}{2}}{\left (\frac {1}{2}-\frac {i \sqrt {3}}{2}\right ) \left (x +1\right )}}\, \sqrt {-\frac {x -\frac {1}{2}-\frac {i \sqrt {3}}{2}}{\left (\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) \left (x +1\right )}}\, \left (-\frac {\left (\frac {1}{2}-\frac {i \sqrt {3}}{2}\right ) F\left (\sqrt {\frac {\left (\frac {3}{2}+\frac {i \sqrt {3}}{2}\right ) x}{\left (\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) \left (x +1\right )}}, \sqrt {\frac {\left (-\frac {3}{2}+\frac {i \sqrt {3}}{2}\right ) \left (-\frac {1}{2}-\frac {i \sqrt {3}}{2}\right )}{\left (-\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) \left (-\frac {3}{2}-\frac {i \sqrt {3}}{2}\right )}}\right )}{\frac {3}{2}+\frac {i \sqrt {3}}{2}}-\left (-\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) E\left (\sqrt {\frac {\left (\frac {3}{2}+\frac {i \sqrt {3}}{2}\right ) x}{\left (\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) \left (x +1\right )}}, \sqrt {\frac {\left (-\frac {3}{2}+\frac {i \sqrt {3}}{2}\right ) \left (-\frac {1}{2}-\frac {i \sqrt {3}}{2}\right )}{\left (-\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) \left (-\frac {3}{2}-\frac {i \sqrt {3}}{2}\right )}}\right )\right )\right ) \sqrt {\frac {a}{x^{3}}}\, x \sqrt {x \left (x^{3}+1\right ) a}}{\sqrt {a x \left (x +1\right ) \left (x -\frac {1}{2}+\frac {i \sqrt {3}}{2}\right ) \left (x -\frac {1}{2}-\frac {i \sqrt {3}}{2}\right )}\, \sqrt {x^{3}+1}}\) | \(355\) |
default | \(\text {Expression too large to display}\) | \(1784\) |
Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.09 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.04 \[ \int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {1+x^3}} \, dx=2 \, \sqrt {a} {\rm weierstrassZeta}\left (0, -4, {\rm weierstrassPInverse}\left (0, -4, \frac {1}{x}\right )\right ) \]
\[ \int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {1+x^3}} \, dx=\int \frac {\sqrt {\frac {a}{x^{3}}}}{\sqrt {\left (x + 1\right ) \left (x^{2} - x + 1\right )}}\, dx \]
\[ \int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {1+x^3}} \, dx=\int { \frac {\sqrt {\frac {a}{x^{3}}}}{\sqrt {x^{3} + 1}} \,d x } \]
\[ \int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {1+x^3}} \, dx=\int { \frac {\sqrt {\frac {a}{x^{3}}}}{\sqrt {x^{3} + 1}} \,d x } \]
Timed out. \[ \int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {1+x^3}} \, dx=\int \frac {\sqrt {\frac {a}{x^3}}}{\sqrt {x^3+1}} \,d x \]