3.2.93 \(\int \frac {\tanh ^3(c+d x)}{(a+b \tanh ^2(c+d x))^3} \, dx\) [193]
Optimal. Leaf size=98 \[ \frac {\log (\cosh (c+d x))}{(a+b)^3 d}+\frac {\log \left (a+b \tanh ^2(c+d x)\right )}{2 (a+b)^3 d}+\frac {a}{4 b (a+b) d \left (a+b \tanh ^2(c+d x)\right )^2}-\frac {1}{2 (a+b)^2 d \left (a+b \tanh ^2(c+d x)\right )} \]
[Out]
ln(cosh(d*x+c))/(a+b)^3/d+1/2*ln(a+b*tanh(d*x+c)^2)/(a+b)^3/d+1/4*a/b/(a+b)/d/(a+b*tanh(d*x+c)^2)^2-1/2/(a+b)^
2/d/(a+b*tanh(d*x+c)^2)
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Rubi [A]
time = 0.10, antiderivative size = 98, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 3, integrand size = 23, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.130, Rules used = {3751, 457, 78}
\begin {gather*} \frac {a}{4 b d (a+b) \left (a+b \tanh ^2(c+d x)\right )^2}-\frac {1}{2 d (a+b)^2 \left (a+b \tanh ^2(c+d x)\right )}+\frac {\log \left (a+b \tanh ^2(c+d x)\right )}{2 d (a+b)^3}+\frac {\log (\cosh (c+d x))}{d (a+b)^3} \end {gather*}
Antiderivative was successfully verified.
[In]
Int[Tanh[c + d*x]^3/(a + b*Tanh[c + d*x]^2)^3,x]
[Out]
Log[Cosh[c + d*x]]/((a + b)^3*d) + Log[a + b*Tanh[c + d*x]^2]/(2*(a + b)^3*d) + a/(4*b*(a + b)*d*(a + b*Tanh[c
+ d*x]^2)^2) - 1/(2*(a + b)^2*d*(a + b*Tanh[c + d*x]^2))
Rule 78
Int[((a_.) + (b_.)*(x_))*((c_) + (d_.)*(x_))^(n_.)*((e_.) + (f_.)*(x_))^(p_.), x_Symbol] :> Int[ExpandIntegran
d[(a + b*x)*(c + d*x)^n*(e + f*x)^p, x], x] /; FreeQ[{a, b, c, d, e, f, n}, x] && NeQ[b*c - a*d, 0] && ((ILtQ[
n, 0] && ILtQ[p, 0]) || EqQ[p, 1] || (IGtQ[p, 0] && ( !IntegerQ[n] || LeQ[9*p + 5*(n + 2), 0] || GeQ[n + p + 1
, 0] || (GeQ[n + p + 2, 0] && RationalQ[a, b, c, d, e, f]))))
Rule 457
Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_.)*((c_) + (d_.)*(x_)^(n_))^(q_.), x_Symbol] :> Dist[1/n, Subst[Int
[x^(Simplify[(m + 1)/n] - 1)*(a + b*x)^p*(c + d*x)^q, x], x, x^n], x] /; FreeQ[{a, b, c, d, m, n, p, q}, x] &&
NeQ[b*c - a*d, 0] && IntegerQ[Simplify[(m + 1)/n]]
Rule 3751
Int[((d_.)*tan[(e_.) + (f_.)*(x_)])^(m_.)*((a_) + (b_.)*((c_.)*tan[(e_.) + (f_.)*(x_)])^(n_))^(p_.), x_Symbol]
:> With[{ff = FreeFactors[Tan[e + f*x], x]}, Dist[c*(ff/f), Subst[Int[(d*ff*(x/c))^m*((a + b*(ff*x)^n)^p/(c^2
+ ff^2*x^2)), x], x, c*(Tan[e + f*x]/ff)], x]] /; FreeQ[{a, b, c, d, e, f, m, n, p}, x] && (IGtQ[p, 0] || EqQ
[n, 2] || EqQ[n, 4] || (IntegerQ[p] && RationalQ[n]))
Rubi steps
\begin {align*} \int \frac {\tanh ^3(c+d x)}{\left (a+b \tanh ^2(c+d x)\right )^3} \, dx &=\frac {\text {Subst}\left (\int \frac {x^3}{\left (1-x^2\right ) \left (a+b x^2\right )^3} \, dx,x,\tanh (c+d x)\right )}{d}\\ &=\frac {\text {Subst}\left (\int \frac {x}{(1-x) (a+b x)^3} \, dx,x,\tanh ^2(c+d x)\right )}{2 d}\\ &=\frac {\text {Subst}\left (\int \left (-\frac {1}{(a+b)^3 (-1+x)}-\frac {a}{(a+b) (a+b x)^3}+\frac {b}{(a+b)^2 (a+b x)^2}+\frac {b}{(a+b)^3 (a+b x)}\right ) \, dx,x,\tanh ^2(c+d x)\right )}{2 d}\\ &=\frac {\log (\cosh (c+d x))}{(a+b)^3 d}+\frac {\log \left (a+b \tanh ^2(c+d x)\right )}{2 (a+b)^3 d}+\frac {a}{4 b (a+b) d \left (a+b \tanh ^2(c+d x)\right )^2}-\frac {1}{2 (a+b)^2 d \left (a+b \tanh ^2(c+d x)\right )}\\ \end {align*}
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Mathematica [A]
time = 0.36, size = 80, normalized size = 0.82 \begin {gather*} \frac {4 \log (\cosh (c+d x))+2 \log \left (a+b \tanh ^2(c+d x)\right )+\frac {a (a+b)^2}{b \left (a+b \tanh ^2(c+d x)\right )^2}-\frac {2 (a+b)}{a+b \tanh ^2(c+d x)}}{4 (a+b)^3 d} \end {gather*}
Antiderivative was successfully verified.
[In]
Integrate[Tanh[c + d*x]^3/(a + b*Tanh[c + d*x]^2)^3,x]
[Out]
(4*Log[Cosh[c + d*x]] + 2*Log[a + b*Tanh[c + d*x]^2] + (a*(a + b)^2)/(b*(a + b*Tanh[c + d*x]^2)^2) - (2*(a + b
))/(a + b*Tanh[c + d*x]^2))/(4*(a + b)^3*d)
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Maple [A]
time = 0.76, size = 115, normalized size = 1.17
| | |
| method |
result |
size |
| | |
| derivativedivides |
\(\frac {-\frac {-\ln \left (a +b \left (\tanh ^{2}\left (d x +c \right )\right )\right )-\frac {a \left (a^{2}+2 a b +b^{2}\right )}{2 b \left (a +b \left (\tanh ^{2}\left (d x +c \right )\right )\right )^{2}}-\frac {-a -b}{a +b \left (\tanh ^{2}\left (d x +c \right )\right )}}{2 \left (a +b \right )^{3}}-\frac {\ln \left (1+\tanh \left (d x +c \right )\right )}{2 \left (a +b \right )^{3}}-\frac {\ln \left (\tanh \left (d x +c \right )-1\right )}{2 \left (a +b \right )^{3}}}{d}\) |
\(115\) |
| default |
\(\frac {-\frac {-\ln \left (a +b \left (\tanh ^{2}\left (d x +c \right )\right )\right )-\frac {a \left (a^{2}+2 a b +b^{2}\right )}{2 b \left (a +b \left (\tanh ^{2}\left (d x +c \right )\right )\right )^{2}}-\frac {-a -b}{a +b \left (\tanh ^{2}\left (d x +c \right )\right )}}{2 \left (a +b \right )^{3}}-\frac {\ln \left (1+\tanh \left (d x +c \right )\right )}{2 \left (a +b \right )^{3}}-\frac {\ln \left (\tanh \left (d x +c \right )-1\right )}{2 \left (a +b \right )^{3}}}{d}\) |
\(115\) |
| risch |
\(-\frac {x}{a^{3}+3 a^{2} b +3 a \,b^{2}+b^{3}}-\frac {2 c}{d \left (a^{3}+3 a^{2} b +3 a \,b^{2}+b^{3}\right )}+\frac {2 \left (a^{2} {\mathrm e}^{4 d x +4 c}-b^{2} {\mathrm e}^{4 d x +4 c}+2 a^{2} {\mathrm e}^{2 d x +2 c}-2 a b \,{\mathrm e}^{2 d x +2 c}+2 b^{2} {\mathrm e}^{2 d x +2 c}+a^{2}-b^{2}\right ) {\mathrm e}^{2 d x +2 c}}{\left (a \,{\mathrm e}^{4 d x +4 c}+b \,{\mathrm e}^{4 d x +4 c}+2 a \,{\mathrm e}^{2 d x +2 c}-2 b \,{\mathrm e}^{2 d x +2 c}+a +b \right )^{2} d \left (a +b \right )^{3}}+\frac {\ln \left ({\mathrm e}^{4 d x +4 c}+\frac {2 \left (a -b \right ) {\mathrm e}^{2 d x +2 c}}{a +b}+1\right )}{2 d \left (a^{3}+3 a^{2} b +3 a \,b^{2}+b^{3}\right )}\) |
\(259\) |
| | |
|
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|
|
Verification of antiderivative is not currently implemented for this CAS.
[In]
int(tanh(d*x+c)^3/(a+b*tanh(d*x+c)^2)^3,x,method=_RETURNVERBOSE)
[Out]
1/d*(-1/2/(a+b)^3*(-ln(a+b*tanh(d*x+c)^2)-1/2*a*(a^2+2*a*b+b^2)/b/(a+b*tanh(d*x+c)^2)^2-(-a-b)/(a+b*tanh(d*x+c
)^2))-1/2/(a+b)^3*ln(1+tanh(d*x+c))-1/2/(a+b)^3*ln(tanh(d*x+c)-1))
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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 384 vs.
\(2 (92) = 184\).
time = 0.34, size = 384, normalized size = 3.92 \begin {gather*} \frac {d x + c}{{\left (a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}\right )} d} + \frac {2 \, {\left ({\left (a^{2} - b^{2}\right )} e^{\left (-2 \, d x - 2 \, c\right )} + 2 \, {\left (a^{2} - a b + b^{2}\right )} e^{\left (-4 \, d x - 4 \, c\right )} + {\left (a^{2} - b^{2}\right )} e^{\left (-6 \, d x - 6 \, c\right )}\right )}}{{\left (a^{5} + 5 \, a^{4} b + 10 \, a^{3} b^{2} + 10 \, a^{2} b^{3} + 5 \, a b^{4} + b^{5} + 4 \, {\left (a^{5} + 3 \, a^{4} b + 2 \, a^{3} b^{2} - 2 \, a^{2} b^{3} - 3 \, a b^{4} - b^{5}\right )} e^{\left (-2 \, d x - 2 \, c\right )} + 2 \, {\left (3 \, a^{5} + 7 \, a^{4} b + 6 \, a^{3} b^{2} + 6 \, a^{2} b^{3} + 7 \, a b^{4} + 3 \, b^{5}\right )} e^{\left (-4 \, d x - 4 \, c\right )} + 4 \, {\left (a^{5} + 3 \, a^{4} b + 2 \, a^{3} b^{2} - 2 \, a^{2} b^{3} - 3 \, a b^{4} - b^{5}\right )} e^{\left (-6 \, d x - 6 \, c\right )} + {\left (a^{5} + 5 \, a^{4} b + 10 \, a^{3} b^{2} + 10 \, a^{2} b^{3} + 5 \, a b^{4} + b^{5}\right )} e^{\left (-8 \, d x - 8 \, c\right )}\right )} d} + \frac {\log \left (2 \, {\left (a - b\right )} e^{\left (-2 \, d x - 2 \, c\right )} + {\left (a + b\right )} e^{\left (-4 \, d x - 4 \, c\right )} + a + b\right )}{2 \, {\left (a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}\right )} d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
integrate(tanh(d*x+c)^3/(a+b*tanh(d*x+c)^2)^3,x, algorithm="maxima")
[Out]
(d*x + c)/((a^3 + 3*a^2*b + 3*a*b^2 + b^3)*d) + 2*((a^2 - b^2)*e^(-2*d*x - 2*c) + 2*(a^2 - a*b + b^2)*e^(-4*d*
x - 4*c) + (a^2 - b^2)*e^(-6*d*x - 6*c))/((a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5 + 4*(a^5 +
3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*e^(-2*d*x - 2*c) + 2*(3*a^5 + 7*a^4*b + 6*a^3*b^2 + 6*a^2*b^3
+ 7*a*b^4 + 3*b^5)*e^(-4*d*x - 4*c) + 4*(a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*e^(-6*d*x - 6
*c) + (a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*e^(-8*d*x - 8*c))*d) + 1/2*log(2*(a - b)*e^(-2
*d*x - 2*c) + (a + b)*e^(-4*d*x - 4*c) + a + b)/((a^3 + 3*a^2*b + 3*a*b^2 + b^3)*d)
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 2611 vs.
\(2 (92) = 184\).
time = 0.41, size = 2611, normalized size = 26.64 \begin {gather*} \text {Too large to display} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
integrate(tanh(d*x+c)^3/(a+b*tanh(d*x+c)^2)^3,x, algorithm="fricas")
[Out]
-1/2*(2*(a^2 + 2*a*b + b^2)*d*x*cosh(d*x + c)^8 + 16*(a^2 + 2*a*b + b^2)*d*x*cosh(d*x + c)*sinh(d*x + c)^7 + 2
*(a^2 + 2*a*b + b^2)*d*x*sinh(d*x + c)^8 + 4*(2*(a^2 - b^2)*d*x - a^2 + b^2)*cosh(d*x + c)^6 + 4*(14*(a^2 + 2*
a*b + b^2)*d*x*cosh(d*x + c)^2 + 2*(a^2 - b^2)*d*x - a^2 + b^2)*sinh(d*x + c)^6 + 8*(14*(a^2 + 2*a*b + b^2)*d*
x*cosh(d*x + c)^3 + 3*(2*(a^2 - b^2)*d*x - a^2 + b^2)*cosh(d*x + c))*sinh(d*x + c)^5 + 4*((3*a^2 - 2*a*b + 3*b
^2)*d*x - 2*a^2 + 2*a*b - 2*b^2)*cosh(d*x + c)^4 + 4*(35*(a^2 + 2*a*b + b^2)*d*x*cosh(d*x + c)^4 + (3*a^2 - 2*
a*b + 3*b^2)*d*x + 15*(2*(a^2 - b^2)*d*x - a^2 + b^2)*cosh(d*x + c)^2 - 2*a^2 + 2*a*b - 2*b^2)*sinh(d*x + c)^4
+ 16*(7*(a^2 + 2*a*b + b^2)*d*x*cosh(d*x + c)^5 + 5*(2*(a^2 - b^2)*d*x - a^2 + b^2)*cosh(d*x + c)^3 + ((3*a^2
- 2*a*b + 3*b^2)*d*x - 2*a^2 + 2*a*b - 2*b^2)*cosh(d*x + c))*sinh(d*x + c)^3 + 2*(a^2 + 2*a*b + b^2)*d*x + 4*
(2*(a^2 - b^2)*d*x - a^2 + b^2)*cosh(d*x + c)^2 + 4*(14*(a^2 + 2*a*b + b^2)*d*x*cosh(d*x + c)^6 + 15*(2*(a^2 -
b^2)*d*x - a^2 + b^2)*cosh(d*x + c)^4 + 2*(a^2 - b^2)*d*x + 6*((3*a^2 - 2*a*b + 3*b^2)*d*x - 2*a^2 + 2*a*b -
2*b^2)*cosh(d*x + c)^2 - a^2 + b^2)*sinh(d*x + c)^2 - ((a^2 + 2*a*b + b^2)*cosh(d*x + c)^8 + 8*(a^2 + 2*a*b +
b^2)*cosh(d*x + c)*sinh(d*x + c)^7 + (a^2 + 2*a*b + b^2)*sinh(d*x + c)^8 + 4*(a^2 - b^2)*cosh(d*x + c)^6 + 4*(
7*(a^2 + 2*a*b + b^2)*cosh(d*x + c)^2 + a^2 - b^2)*sinh(d*x + c)^6 + 8*(7*(a^2 + 2*a*b + b^2)*cosh(d*x + c)^3
+ 3*(a^2 - b^2)*cosh(d*x + c))*sinh(d*x + c)^5 + 2*(3*a^2 - 2*a*b + 3*b^2)*cosh(d*x + c)^4 + 2*(35*(a^2 + 2*a*
b + b^2)*cosh(d*x + c)^4 + 30*(a^2 - b^2)*cosh(d*x + c)^2 + 3*a^2 - 2*a*b + 3*b^2)*sinh(d*x + c)^4 + 8*(7*(a^2
+ 2*a*b + b^2)*cosh(d*x + c)^5 + 10*(a^2 - b^2)*cosh(d*x + c)^3 + (3*a^2 - 2*a*b + 3*b^2)*cosh(d*x + c))*sinh
(d*x + c)^3 + 4*(a^2 - b^2)*cosh(d*x + c)^2 + 4*(7*(a^2 + 2*a*b + b^2)*cosh(d*x + c)^6 + 15*(a^2 - b^2)*cosh(d
*x + c)^4 + 3*(3*a^2 - 2*a*b + 3*b^2)*cosh(d*x + c)^2 + a^2 - b^2)*sinh(d*x + c)^2 + a^2 + 2*a*b + b^2 + 8*((a
^2 + 2*a*b + b^2)*cosh(d*x + c)^7 + 3*(a^2 - b^2)*cosh(d*x + c)^5 + (3*a^2 - 2*a*b + 3*b^2)*cosh(d*x + c)^3 +
(a^2 - b^2)*cosh(d*x + c))*sinh(d*x + c))*log(2*((a + b)*cosh(d*x + c)^2 + (a + b)*sinh(d*x + c)^2 + a - b)/(c
osh(d*x + c)^2 - 2*cosh(d*x + c)*sinh(d*x + c) + sinh(d*x + c)^2)) + 8*(2*(a^2 + 2*a*b + b^2)*d*x*cosh(d*x + c
)^7 + 3*(2*(a^2 - b^2)*d*x - a^2 + b^2)*cosh(d*x + c)^5 + 2*((3*a^2 - 2*a*b + 3*b^2)*d*x - 2*a^2 + 2*a*b - 2*b
^2)*cosh(d*x + c)^3 + (2*(a^2 - b^2)*d*x - a^2 + b^2)*cosh(d*x + c))*sinh(d*x + c))/((a^5 + 5*a^4*b + 10*a^3*b
^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*d*cosh(d*x + c)^8 + 8*(a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^
5)*d*cosh(d*x + c)*sinh(d*x + c)^7 + (a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*d*sinh(d*x + c)
^8 + 4*(a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d*cosh(d*x + c)^6 + 4*(7*(a^5 + 5*a^4*b + 10*a^
3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*d*cosh(d*x + c)^2 + (a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5
)*d)*sinh(d*x + c)^6 + 2*(3*a^5 + 7*a^4*b + 6*a^3*b^2 + 6*a^2*b^3 + 7*a*b^4 + 3*b^5)*d*cosh(d*x + c)^4 + 8*(7*
(a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*d*cosh(d*x + c)^3 + 3*(a^5 + 3*a^4*b + 2*a^3*b^2 - 2
*a^2*b^3 - 3*a*b^4 - b^5)*d*cosh(d*x + c))*sinh(d*x + c)^5 + 2*(35*(a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 +
5*a*b^4 + b^5)*d*cosh(d*x + c)^4 + 30*(a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d*cosh(d*x + c)^
2 + (3*a^5 + 7*a^4*b + 6*a^3*b^2 + 6*a^2*b^3 + 7*a*b^4 + 3*b^5)*d)*sinh(d*x + c)^4 + 4*(a^5 + 3*a^4*b + 2*a^3*
b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d*cosh(d*x + c)^2 + 8*(7*(a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 +
b^5)*d*cosh(d*x + c)^5 + 10*(a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d*cosh(d*x + c)^3 + (3*a^
5 + 7*a^4*b + 6*a^3*b^2 + 6*a^2*b^3 + 7*a*b^4 + 3*b^5)*d*cosh(d*x + c))*sinh(d*x + c)^3 + 4*(7*(a^5 + 5*a^4*b
+ 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*d*cosh(d*x + c)^6 + 15*(a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a
*b^4 - b^5)*d*cosh(d*x + c)^4 + 3*(3*a^5 + 7*a^4*b + 6*a^3*b^2 + 6*a^2*b^3 + 7*a*b^4 + 3*b^5)*d*cosh(d*x + c)^
2 + (a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d)*sinh(d*x + c)^2 + (a^5 + 5*a^4*b + 10*a^3*b^2 +
10*a^2*b^3 + 5*a*b^4 + b^5)*d + 8*((a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*d*cosh(d*x + c)^
7 + 3*(a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d*cosh(d*x + c)^5 + (3*a^5 + 7*a^4*b + 6*a^3*b^2
+ 6*a^2*b^3 + 7*a*b^4 + 3*b^5)*d*cosh(d*x + c)^3 + (a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d*
cosh(d*x + c))*sinh(d*x + c))
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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 3403 vs.
\(2 (82) = 164\).
time = 113.44, size = 3403, normalized size = 34.72 \begin {gather*} \text {Too large to display} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
integrate(tanh(d*x+c)**3/(a+b*tanh(d*x+c)**2)**3,x)
[Out]
Piecewise((zoo*x/tanh(c)**3, Eq(a, 0) & Eq(b, 0) & Eq(d, 0)), (3*tanh(c + d*x)**2/(12*b**3*d*tanh(c + d*x)**6
- 36*b**3*d*tanh(c + d*x)**4 + 36*b**3*d*tanh(c + d*x)**2 - 12*b**3*d) - 1/(12*b**3*d*tanh(c + d*x)**6 - 36*b*
*3*d*tanh(c + d*x)**4 + 36*b**3*d*tanh(c + d*x)**2 - 12*b**3*d), Eq(a, -b)), ((x - log(tanh(c + d*x) + 1)/d -
tanh(c + d*x)**2/(2*d))/a**3, Eq(b, 0)), (x*tanh(c)**3/(a + b*tanh(c)**2)**3, Eq(d, 0)), (a**3/(4*a**5*b*d + 8
*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)
**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*
a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)**2 + 4*b**6*d*tanh(c + d*x)**4) + 4*a**2*b*d*x/(4*a**5*b*
d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c +
d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d
+ 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)**2 + 4*b**6*d*tanh(c + d*x)**4) + 2*a**2*b*log(-sqrt
(-a/b) + tanh(c + d*x))/(4*a**5*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a**3*b**3*d*tanh(c +
d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**4 + 24*a**2*b**4*d
*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)**2 + 4*b**6*d*tanh
(c + d*x)**4) + 2*a**2*b*log(sqrt(-a/b) + tanh(c + d*x))/(4*a**5*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**
4*b**2*d + 4*a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*
tanh(c + d*x)**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d
*tanh(c + d*x)**2 + 4*b**6*d*tanh(c + d*x)**4) - 4*a**2*b*log(tanh(c + d*x) + 1)/(4*a**5*b*d + 8*a**4*b**2*d*t
anh(c + d*x)**2 + 12*a**4*b**2*d + 4*a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)**2 + 12*a**3*
b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a*b**5*d*tanh(
c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)**2 + 4*b**6*d*tanh(c + d*x)**4) + 8*a*b**2*d*x*tanh(c + d*x)**2/(4*a**5
*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(
c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4
*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)**2 + 4*b**6*d*tanh(c + d*x)**4) + 4*a*b**2*log(-s
qrt(-a/b) + tanh(c + d*x))*tanh(c + d*x)**2/(4*a**5*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*
a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)
**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x
)**2 + 4*b**6*d*tanh(c + d*x)**4) + 4*a*b**2*log(sqrt(-a/b) + tanh(c + d*x))*tanh(c + d*x)**2/(4*a**5*b*d + 8*
a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)*
*2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a
*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)**2 + 4*b**6*d*tanh(c + d*x)**4) - 8*a*b**2*log(tanh(c + d*
x) + 1)*tanh(c + d*x)**2/(4*a**5*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a**3*b**3*d*tanh(c
+ d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**4 + 24*a**2*b**4*
d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)**2 + 4*b**6*d*tan
h(c + d*x)**4) - 2*a*b**2*tanh(c + d*x)**2/(4*a**5*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a
**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)*
*4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)
**2 + 4*b**6*d*tanh(c + d*x)**4) - a*b**2/(4*a**5*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a*
*3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**
4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b**5*d*tanh(c + d*x)*
*2 + 4*b**6*d*tanh(c + d*x)**4) + 4*b**3*d*x*tanh(c + d*x)**4/(4*a**5*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 1
2*a**4*b**2*d + 4*a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3*d*tanh(c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b*
*4*d*tanh(c + d*x)**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a**2*b**4*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a*b
**5*d*tanh(c + d*x)**2 + 4*b**6*d*tanh(c + d*x)**4) + 2*b**3*log(-sqrt(-a/b) + tanh(c + d*x))*tanh(c + d*x)**4
/(4*a**5*b*d + 8*a**4*b**2*d*tanh(c + d*x)**2 + 12*a**4*b**2*d + 4*a**3*b**3*d*tanh(c + d*x)**4 + 24*a**3*b**3
*d*tanh(c + d*x)**2 + 12*a**3*b**3*d + 12*a**2*b**4*d*tanh(c + d*x)**4 + 24*a**2*b**4*d*tanh(c + d*x)**2 + 4*a
**2*b**4*d + 12*a*b**5*d*tanh(c + d*x)**4 + 8*a...
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 245 vs.
\(2 (92) = 184\).
time = 0.55, size = 245, normalized size = 2.50 \begin {gather*} \frac {\frac {2 \, \log \left ({\left | a {\left (e^{\left (2 \, d x + 2 \, c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )} + b {\left (e^{\left (2 \, d x + 2 \, c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )} + 2 \, a - 2 \, b \right |}\right )}{a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}} - \frac {3 \, a {\left (e^{\left (2 \, d x + 2 \, c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )}^{2} + 3 \, b {\left (e^{\left (2 \, d x + 2 \, c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )}^{2} + 4 \, a {\left (e^{\left (2 \, d x + 2 \, c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )} - 4 \, b {\left (e^{\left (2 \, d x + 2 \, c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )} - 4 \, a - 4 \, b}{{\left (a^{2} + 2 \, a b + b^{2}\right )} {\left (a {\left (e^{\left (2 \, d x + 2 \, c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )} + b {\left (e^{\left (2 \, d x + 2 \, c\right )} + e^{\left (-2 \, d x - 2 \, c\right )}\right )} + 2 \, a - 2 \, b\right )}^{2}}}{4 \, d} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
integrate(tanh(d*x+c)^3/(a+b*tanh(d*x+c)^2)^3,x, algorithm="giac")
[Out]
1/4*(2*log(abs(a*(e^(2*d*x + 2*c) + e^(-2*d*x - 2*c)) + b*(e^(2*d*x + 2*c) + e^(-2*d*x - 2*c)) + 2*a - 2*b))/(
a^3 + 3*a^2*b + 3*a*b^2 + b^3) - (3*a*(e^(2*d*x + 2*c) + e^(-2*d*x - 2*c))^2 + 3*b*(e^(2*d*x + 2*c) + e^(-2*d*
x - 2*c))^2 + 4*a*(e^(2*d*x + 2*c) + e^(-2*d*x - 2*c)) - 4*b*(e^(2*d*x + 2*c) + e^(-2*d*x - 2*c)) - 4*a - 4*b)
/((a^2 + 2*a*b + b^2)*(a*(e^(2*d*x + 2*c) + e^(-2*d*x - 2*c)) + b*(e^(2*d*x + 2*c) + e^(-2*d*x - 2*c)) + 2*a -
2*b)^2))/d
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Mupad [B]
time = 1.81, size = 397, normalized size = 4.05 \begin {gather*} -\frac {-a^3+b^3\,\left (2\,{\mathrm {tanh}\left (c+d\,x\right )}^2+{\mathrm {tanh}\left (c+d\,x\right )}^4\,\mathrm {atan}\left (\frac {a\,{\mathrm {tanh}\left (c+d\,x\right )}^2\,1{}\mathrm {i}+b\,{\mathrm {tanh}\left (c+d\,x\right )}^2\,1{}\mathrm {i}}{2\,a-a\,{\mathrm {tanh}\left (c+d\,x\right )}^2+b\,{\mathrm {tanh}\left (c+d\,x\right )}^2}\right )\,4{}\mathrm {i}\right )+a\,b^2\,\left (2\,{\mathrm {tanh}\left (c+d\,x\right )}^2+1+{\mathrm {tanh}\left (c+d\,x\right )}^2\,\mathrm {atan}\left (\frac {a\,{\mathrm {tanh}\left (c+d\,x\right )}^2\,1{}\mathrm {i}+b\,{\mathrm {tanh}\left (c+d\,x\right )}^2\,1{}\mathrm {i}}{2\,a-a\,{\mathrm {tanh}\left (c+d\,x\right )}^2+b\,{\mathrm {tanh}\left (c+d\,x\right )}^2}\right )\,8{}\mathrm {i}\right )+a^2\,b\,\mathrm {atan}\left (\frac {a\,{\mathrm {tanh}\left (c+d\,x\right )}^2\,1{}\mathrm {i}+b\,{\mathrm {tanh}\left (c+d\,x\right )}^2\,1{}\mathrm {i}}{2\,a-a\,{\mathrm {tanh}\left (c+d\,x\right )}^2+b\,{\mathrm {tanh}\left (c+d\,x\right )}^2}\right )\,4{}\mathrm {i}}{4\,d\,a^5\,b+8\,d\,a^4\,b^2\,{\mathrm {tanh}\left (c+d\,x\right )}^2+12\,d\,a^4\,b^2+4\,d\,a^3\,b^3\,{\mathrm {tanh}\left (c+d\,x\right )}^4+24\,d\,a^3\,b^3\,{\mathrm {tanh}\left (c+d\,x\right )}^2+12\,d\,a^3\,b^3+12\,d\,a^2\,b^4\,{\mathrm {tanh}\left (c+d\,x\right )}^4+24\,d\,a^2\,b^4\,{\mathrm {tanh}\left (c+d\,x\right )}^2+4\,d\,a^2\,b^4+12\,d\,a\,b^5\,{\mathrm {tanh}\left (c+d\,x\right )}^4+8\,d\,a\,b^5\,{\mathrm {tanh}\left (c+d\,x\right )}^2+4\,d\,b^6\,{\mathrm {tanh}\left (c+d\,x\right )}^4} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
int(tanh(c + d*x)^3/(a + b*tanh(c + d*x)^2)^3,x)
[Out]
-(b^3*(tanh(c + d*x)^4*atan((a*tanh(c + d*x)^2*1i + b*tanh(c + d*x)^2*1i)/(2*a - a*tanh(c + d*x)^2 + b*tanh(c
+ d*x)^2))*4i + 2*tanh(c + d*x)^2) - a^3 + a*b^2*(tanh(c + d*x)^2*atan((a*tanh(c + d*x)^2*1i + b*tanh(c + d*x)
^2*1i)/(2*a - a*tanh(c + d*x)^2 + b*tanh(c + d*x)^2))*8i + 2*tanh(c + d*x)^2 + 1) + a^2*b*atan((a*tanh(c + d*x
)^2*1i + b*tanh(c + d*x)^2*1i)/(2*a - a*tanh(c + d*x)^2 + b*tanh(c + d*x)^2))*4i)/(4*a^2*b^4*d + 12*a^3*b^3*d
+ 12*a^4*b^2*d + 4*b^6*d*tanh(c + d*x)^4 + 4*a^5*b*d + 24*a^2*b^4*d*tanh(c + d*x)^2 + 24*a^3*b^3*d*tanh(c + d*
x)^2 + 8*a^4*b^2*d*tanh(c + d*x)^2 + 12*a^2*b^4*d*tanh(c + d*x)^4 + 4*a^3*b^3*d*tanh(c + d*x)^4 + 8*a*b^5*d*ta
nh(c + d*x)^2 + 12*a*b^5*d*tanh(c + d*x)^4)
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