Integrand size = 27, antiderivative size = 66 \[ \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx=\frac {x^4 \sqrt {1+\frac {d x^3}{c}} \operatorname {AppellF1}\left (\frac {4}{3},2,\frac {1}{2},\frac {7}{3},\frac {d x^3}{8 c},-\frac {d x^3}{c}\right )}{256 c^2 \sqrt {c+d x^3}} \] Output:
1/256*x^4*(1+d*x^3/c)^(1/2)*AppellF1(4/3,1/2,2,7/3,-d*x^3/c,1/8*d*x^3/c)/c ^2/(d*x^3+c)^(1/2)
Leaf count is larger than twice the leaf count of optimal. \(237\) vs. \(2(66)=132\).
Time = 10.24 (sec) , antiderivative size = 237, normalized size of antiderivative = 3.59 \[ \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx=\frac {x \left (x^3 \sqrt {1+\frac {d x^3}{c}} \operatorname {AppellF1}\left (\frac {4}{3},\frac {1}{2},1,\frac {7}{3},-\frac {d x^3}{c},\frac {d x^3}{8 c}\right )-\frac {64 c \left (c+d x^3-\frac {32 c^2 \operatorname {AppellF1}\left (\frac {1}{3},\frac {1}{2},1,\frac {4}{3},-\frac {d x^3}{c},\frac {d x^3}{8 c}\right )}{32 c \operatorname {AppellF1}\left (\frac {1}{3},\frac {1}{2},1,\frac {4}{3},-\frac {d x^3}{c},\frac {d x^3}{8 c}\right )+3 d x^3 \left (\operatorname {AppellF1}\left (\frac {4}{3},\frac {1}{2},2,\frac {7}{3},-\frac {d x^3}{c},\frac {d x^3}{8 c}\right )-4 \operatorname {AppellF1}\left (\frac {4}{3},\frac {3}{2},1,\frac {7}{3},-\frac {d x^3}{c},\frac {d x^3}{8 c}\right )\right )}\right )}{d \left (-8 c+d x^3\right )}\right )}{1728 c^2 \sqrt {c+d x^3}} \] Input:
Integrate[x^3/((8*c - d*x^3)^2*Sqrt[c + d*x^3]),x]
Output:
(x*(x^3*Sqrt[1 + (d*x^3)/c]*AppellF1[4/3, 1/2, 1, 7/3, -((d*x^3)/c), (d*x^ 3)/(8*c)] - (64*c*(c + d*x^3 - (32*c^2*AppellF1[1/3, 1/2, 1, 4/3, -((d*x^3 )/c), (d*x^3)/(8*c)])/(32*c*AppellF1[1/3, 1/2, 1, 4/3, -((d*x^3)/c), (d*x^ 3)/(8*c)] + 3*d*x^3*(AppellF1[4/3, 1/2, 2, 7/3, -((d*x^3)/c), (d*x^3)/(8*c )] - 4*AppellF1[4/3, 3/2, 1, 7/3, -((d*x^3)/c), (d*x^3)/(8*c)]))))/(d*(-8* c + d*x^3))))/(1728*c^2*Sqrt[c + d*x^3])
Time = 0.35 (sec) , antiderivative size = 66, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.074, Rules used = {1013, 1012}
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.
\(\displaystyle \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx\) |
\(\Big \downarrow \) 1013 |
\(\displaystyle \frac {\sqrt {\frac {d x^3}{c}+1} \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {\frac {d x^3}{c}+1}}dx}{\sqrt {c+d x^3}}\) |
\(\Big \downarrow \) 1012 |
\(\displaystyle \frac {x^4 \sqrt {\frac {d x^3}{c}+1} \operatorname {AppellF1}\left (\frac {4}{3},2,\frac {1}{2},\frac {7}{3},\frac {d x^3}{8 c},-\frac {d x^3}{c}\right )}{256 c^2 \sqrt {c+d x^3}}\) |
Input:
Int[x^3/((8*c - d*x^3)^2*Sqrt[c + d*x^3]),x]
Output:
(x^4*Sqrt[1 + (d*x^3)/c]*AppellF1[4/3, 2, 1/2, 7/3, (d*x^3)/(8*c), -((d*x^ 3)/c)])/(256*c^2*Sqrt[c + d*x^3])
Int[((e_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_)*((c_) + (d_.)*(x_)^(n_ ))^(q_), x_Symbol] :> Simp[a^p*c^q*((e*x)^(m + 1)/(e*(m + 1)))*AppellF1[(m + 1)/n, -p, -q, 1 + (m + 1)/n, (-b)*(x^n/a), (-d)*(x^n/c)], x] /; FreeQ[{a, b, c, d, e, m, n, p, q}, x] && NeQ[b*c - a*d, 0] && NeQ[m, -1] && NeQ[m, n - 1] && (IntegerQ[p] || GtQ[a, 0]) && (IntegerQ[q] || GtQ[c, 0])
Int[((e_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_)*((c_) + (d_.)*(x_)^(n_ ))^(q_), x_Symbol] :> Simp[a^IntPart[p]*((a + b*x^n)^FracPart[p]/(1 + b*(x^ n/a))^FracPart[p]) Int[(e*x)^m*(1 + b*(x^n/a))^p*(c + d*x^n)^q, x], x] /; FreeQ[{a, b, c, d, e, m, n, p, q}, x] && NeQ[b*c - a*d, 0] && NeQ[m, -1] & & NeQ[m, n - 1] && !(IntegerQ[p] || GtQ[a, 0])
Result contains higher order function than in optimal. Order 9 vs. order 6.
Time = 1.96 (sec) , antiderivative size = 732, normalized size of antiderivative = 11.09
method | result | size |
elliptic | \(\text {Expression too large to display}\) | \(732\) |
default | \(\text {Expression too large to display}\) | \(1151\) |
Input:
int(x^3/(-d*x^3+8*c)^2/(d*x^3+c)^(1/2),x,method=_RETURNVERBOSE)
Output:
1/27*x*(d*x^3+c)^(1/2)/c/d/(-d*x^3+8*c)+1/81*I/c/d^2*3^(1/2)*(-c*d^2)^(1/3 )*(I*(x+1/2/d*(-c*d^2)^(1/3)-1/2*I*3^(1/2)/d*(-c*d^2)^(1/3))*3^(1/2)*d/(-c *d^2)^(1/3))^(1/2)*((x-1/d*(-c*d^2)^(1/3))/(-3/2/d*(-c*d^2)^(1/3)+1/2*I*3^ (1/2)/d*(-c*d^2)^(1/3)))^(1/2)*(-I*(x+1/2/d*(-c*d^2)^(1/3)+1/2*I*3^(1/2)/d *(-c*d^2)^(1/3))*3^(1/2)*d/(-c*d^2)^(1/3))^(1/2)/(d*x^3+c)^(1/2)*EllipticF (1/3*3^(1/2)*(I*(x+1/2/d*(-c*d^2)^(1/3)-1/2*I*3^(1/2)/d*(-c*d^2)^(1/3))*3^ (1/2)*d/(-c*d^2)^(1/3))^(1/2),(I*3^(1/2)/d*(-c*d^2)^(1/3)/(-3/2/d*(-c*d^2) ^(1/3)+1/2*I*3^(1/2)/d*(-c*d^2)^(1/3)))^(1/2))-1/243*I/d^4/c*2^(1/2)*sum(1 /_alpha^2*(-c*d^2)^(1/3)*(1/2*I*d*(2*x+1/d*(-I*3^(1/2)*(-c*d^2)^(1/3)+(-c* d^2)^(1/3)))/(-c*d^2)^(1/3))^(1/2)*(d*(x-1/d*(-c*d^2)^(1/3))/(-3*(-c*d^2)^ (1/3)+I*3^(1/2)*(-c*d^2)^(1/3)))^(1/2)*(-1/2*I*d*(2*x+1/d*(I*3^(1/2)*(-c*d ^2)^(1/3)+(-c*d^2)^(1/3)))/(-c*d^2)^(1/3))^(1/2)/(d*x^3+c)^(1/2)*(I*(-c*d^ 2)^(1/3)*_alpha*3^(1/2)*d-I*3^(1/2)*(-c*d^2)^(2/3)+2*_alpha^2*d^2-(-c*d^2) ^(1/3)*_alpha*d-(-c*d^2)^(2/3))*EllipticPi(1/3*3^(1/2)*(I*(x+1/2/d*(-c*d^2 )^(1/3)-1/2*I*3^(1/2)/d*(-c*d^2)^(1/3))*3^(1/2)*d/(-c*d^2)^(1/3))^(1/2),-1 /18/d*(2*I*(-c*d^2)^(1/3)*_alpha^2*3^(1/2)*d-I*(-c*d^2)^(2/3)*_alpha*3^(1/ 2)+I*3^(1/2)*c*d-3*(-c*d^2)^(2/3)*_alpha-3*c*d)/c,(I*3^(1/2)/d*(-c*d^2)^(1 /3)/(-3/2/d*(-c*d^2)^(1/3)+1/2*I*3^(1/2)/d*(-c*d^2)^(1/3)))^(1/2)),_alpha= RootOf(_Z^3*d-8*c))
Leaf count of result is larger than twice the leaf count of optimal. 2548 vs. \(2 (52) = 104\).
Time = 0.57 (sec) , antiderivative size = 2548, normalized size of antiderivative = 38.61 \[ \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx=\text {Too large to display} \] Input:
integrate(x^3/(-d*x^3+8*c)^2/(d*x^3+c)^(1/2),x, algorithm="fricas")
Output:
-1/3888*(144*sqrt(d*x^3 + c)*d*x + 72*(d*x^3 - 8*c)*sqrt(d)*weierstrassPIn verse(0, -4*c/d, x) - (c*d^3*x^3 - 8*c^2*d^2 + sqrt(-3)*(c*d^3*x^3 - 8*c^2 *d^2))*(1/(c^7*d^8))^(1/6)*log((d^3*x^9 + 318*c*d^2*x^6 + 1200*c^2*d*x^3 + 640*c^3 - 9*(c^5*d^8*x^8 + 38*c^6*d^7*x^5 + 64*c^7*d^6*x^2 + sqrt(-3)*(c^ 5*d^8*x^8 + 38*c^6*d^7*x^5 + 64*c^7*d^6*x^2))*(1/(c^7*d^8))^(2/3) + 3*sqrt (d*x^3 + c)*((c^6*d^9*x^7 + 80*c^7*d^8*x^4 + 160*c^8*d^7*x - sqrt(-3)*(c^6 *d^9*x^7 + 80*c^7*d^8*x^4 + 160*c^8*d^7*x))*(1/(c^7*d^8))^(5/6) - 2*(7*c^4 *d^6*x^6 + 152*c^5*d^5*x^3 + 64*c^6*d^4)*sqrt(1/(c^7*d^8)) + 6*(5*c^2*d^3* x^5 + 32*c^3*d^2*x^2 + sqrt(-3)*(5*c^2*d^3*x^5 + 32*c^3*d^2*x^2))*(1/(c^7* d^8))^(1/6)) - 9*(5*c^3*d^5*x^7 + 64*c^4*d^4*x^4 + 32*c^5*d^3*x - sqrt(-3) *(5*c^3*d^5*x^7 + 64*c^4*d^4*x^4 + 32*c^5*d^3*x))*(1/(c^7*d^8))^(1/3))/(d^ 3*x^9 - 24*c*d^2*x^6 + 192*c^2*d*x^3 - 512*c^3)) + (c*d^3*x^3 - 8*c^2*d^2 + sqrt(-3)*(c*d^3*x^3 - 8*c^2*d^2))*(1/(c^7*d^8))^(1/6)*log((d^3*x^9 + 318 *c*d^2*x^6 + 1200*c^2*d*x^3 + 640*c^3 - 9*(c^5*d^8*x^8 + 38*c^6*d^7*x^5 + 64*c^7*d^6*x^2 + sqrt(-3)*(c^5*d^8*x^8 + 38*c^6*d^7*x^5 + 64*c^7*d^6*x^2)) *(1/(c^7*d^8))^(2/3) - 3*sqrt(d*x^3 + c)*((c^6*d^9*x^7 + 80*c^7*d^8*x^4 + 160*c^8*d^7*x - sqrt(-3)*(c^6*d^9*x^7 + 80*c^7*d^8*x^4 + 160*c^8*d^7*x))*( 1/(c^7*d^8))^(5/6) - 2*(7*c^4*d^6*x^6 + 152*c^5*d^5*x^3 + 64*c^6*d^4)*sqrt (1/(c^7*d^8)) + 6*(5*c^2*d^3*x^5 + 32*c^3*d^2*x^2 + sqrt(-3)*(5*c^2*d^3*x^ 5 + 32*c^3*d^2*x^2))*(1/(c^7*d^8))^(1/6)) - 9*(5*c^3*d^5*x^7 + 64*c^4*d...
\[ \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx=\int \frac {x^{3}}{\left (- 8 c + d x^{3}\right )^{2} \sqrt {c + d x^{3}}}\, dx \] Input:
integrate(x**3/(-d*x**3+8*c)**2/(d*x**3+c)**(1/2),x)
Output:
Integral(x**3/((-8*c + d*x**3)**2*sqrt(c + d*x**3)), x)
\[ \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx=\int { \frac {x^{3}}{\sqrt {d x^{3} + c} {\left (d x^{3} - 8 \, c\right )}^{2}} \,d x } \] Input:
integrate(x^3/(-d*x^3+8*c)^2/(d*x^3+c)^(1/2),x, algorithm="maxima")
Output:
integrate(x^3/(sqrt(d*x^3 + c)*(d*x^3 - 8*c)^2), x)
\[ \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx=\int { \frac {x^{3}}{\sqrt {d x^{3} + c} {\left (d x^{3} - 8 \, c\right )}^{2}} \,d x } \] Input:
integrate(x^3/(-d*x^3+8*c)^2/(d*x^3+c)^(1/2),x, algorithm="giac")
Output:
integrate(x^3/(sqrt(d*x^3 + c)*(d*x^3 - 8*c)^2), x)
Timed out. \[ \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx=\int \frac {x^3}{\sqrt {d\,x^3+c}\,{\left (8\,c-d\,x^3\right )}^2} \,d x \] Input:
int(x^3/((c + d*x^3)^(1/2)*(8*c - d*x^3)^2),x)
Output:
int(x^3/((c + d*x^3)^(1/2)*(8*c - d*x^3)^2), x)
\[ \int \frac {x^3}{\left (8 c-d x^3\right )^2 \sqrt {c+d x^3}} \, dx=\int \frac {\sqrt {d \,x^{3}+c}\, x^{3}}{d^{3} x^{9}-15 c \,d^{2} x^{6}+48 c^{2} d \,x^{3}+64 c^{3}}d x \] Input:
int(x^3/(-d*x^3+8*c)^2/(d*x^3+c)^(1/2),x)
Output:
int((sqrt(c + d*x**3)*x**3)/(64*c**3 + 48*c**2*d*x**3 - 15*c*d**2*x**6 + d **3*x**9),x)