Optimal. Leaf size=134 \[ \frac {4 \sqrt {i a+i b x+1}}{(1-i a) \sqrt {-i a-i b x+1}}-i \sinh ^{-1}(a+b x)-\frac {2 (-a+i)^{3/2} \tanh ^{-1}\left (\frac {\sqrt {a+i} \sqrt {i a+i b x+1}}{\sqrt {-a+i} \sqrt {-i a-i b x+1}}\right )}{(a+i)^{3/2}} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.10, antiderivative size = 134, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 8, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {5095, 98, 157, 53, 619, 215, 93, 208} \[ \frac {4 \sqrt {i a+i b x+1}}{(1-i a) \sqrt {-i a-i b x+1}}-i \sinh ^{-1}(a+b x)-\frac {2 (-a+i)^{3/2} \tanh ^{-1}\left (\frac {\sqrt {a+i} \sqrt {i a+i b x+1}}{\sqrt {-a+i} \sqrt {-i a-i b x+1}}\right )}{(a+i)^{3/2}} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 53
Rule 93
Rule 98
Rule 157
Rule 208
Rule 215
Rule 619
Rule 5095
Rubi steps
\begin {align*} \int \frac {e^{3 i \tan ^{-1}(a+b x)}}{x} \, dx &=\int \frac {(1+i a+i b x)^{3/2}}{x (1-i a-i b x)^{3/2}} \, dx\\ &=\frac {4 \sqrt {1+i a+i b x}}{(1-i a) \sqrt {1-i a-i b x}}-\frac {2 \int \frac {\frac {1}{2} i (i-a)^2 b-\frac {1}{2} (1-i a) b^2 x}{x \sqrt {1-i a-i b x} \sqrt {1+i a+i b x}} \, dx}{(i+a) b}\\ &=\frac {4 \sqrt {1+i a+i b x}}{(1-i a) \sqrt {1-i a-i b x}}-\frac {(i-a)^2 \int \frac {1}{x \sqrt {1-i a-i b x} \sqrt {1+i a+i b x}} \, dx}{1-i a}-(i b) \int \frac {1}{\sqrt {1-i a-i b x} \sqrt {1+i a+i b x}} \, dx\\ &=\frac {4 \sqrt {1+i a+i b x}}{(1-i a) \sqrt {1-i a-i b x}}-\frac {\left (2 (i-a)^2\right ) \operatorname {Subst}\left (\int \frac {1}{-1-i a-(-1+i a) x^2} \, dx,x,\frac {\sqrt {1+i a+i b x}}{\sqrt {1-i a-i b x}}\right )}{1-i a}-(i b) \int \frac {1}{\sqrt {(1-i a) (1+i a)+2 a b x+b^2 x^2}} \, dx\\ &=\frac {4 \sqrt {1+i a+i b x}}{(1-i a) \sqrt {1-i a-i b x}}-\frac {2 (i-a)^{3/2} \tanh ^{-1}\left (\frac {\sqrt {i+a} \sqrt {1+i a+i b x}}{\sqrt {i-a} \sqrt {1-i a-i b x}}\right )}{(i+a)^{3/2}}-\frac {i \operatorname {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^2}{4 b^2}}} \, dx,x,2 a b+2 b^2 x\right )}{2 b}\\ &=\frac {4 \sqrt {1+i a+i b x}}{(1-i a) \sqrt {1-i a-i b x}}-i \sinh ^{-1}(a+b x)-\frac {2 (i-a)^{3/2} \tanh ^{-1}\left (\frac {\sqrt {i+a} \sqrt {1+i a+i b x}}{\sqrt {i-a} \sqrt {1-i a-i b x}}\right )}{(i+a)^{3/2}}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A] time = 0.80, size = 196, normalized size = 1.46 \[ \frac {2 \left (\frac {\sqrt [4]{-1} (a+i) (-i b)^{3/2} \sinh ^{-1}\left (\frac {\left (\frac {1}{2}+\frac {i}{2}\right ) \sqrt {b} \sqrt {-i (a+b x+i)}}{\sqrt {-i b}}\right )}{b^{3/2}}+\frac {2 i \sqrt {i a+i b x+1}}{\sqrt {-i (a+b x+i)}}+\frac {\sqrt {-1-i a} (a-i) \tanh ^{-1}\left (\frac {\sqrt {-1-i a} \sqrt {-i (a+b x+i)}}{\sqrt {-1+i a} \sqrt {i a+i b x+1}}\right )}{\sqrt {-1+i a}}\right )}{a+i} \]
Warning: Unable to verify antiderivative.
[In]
[Out]
________________________________________________________________________________________
fricas [B] time = 0.51, size = 381, normalized size = 2.84 \[ -\frac {{\left ({\left (a + i\right )} b x + a^{2} + 2 i \, a - 1\right )} \sqrt {-\frac {4 \, a^{3} - 12 i \, a^{2} - 12 \, a + 4 i}{a^{3} + 3 i \, a^{2} - 3 \, a - i}} \log \left (-\frac {{\left (2 \, a - 2 i\right )} b x - \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} {\left (2 \, a - 2 i\right )} - {\left (i \, a^{2} - 2 \, a - i\right )} \sqrt {-\frac {4 \, a^{3} - 12 i \, a^{2} - 12 \, a + 4 i}{a^{3} + 3 i \, a^{2} - 3 \, a - i}}}{2 \, a - 2 i}\right ) - {\left ({\left (a + i\right )} b x + a^{2} + 2 i \, a - 1\right )} \sqrt {-\frac {4 \, a^{3} - 12 i \, a^{2} - 12 \, a + 4 i}{a^{3} + 3 i \, a^{2} - 3 \, a - i}} \log \left (-\frac {{\left (2 \, a - 2 i\right )} b x - \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} {\left (2 \, a - 2 i\right )} - {\left (-i \, a^{2} + 2 \, a + i\right )} \sqrt {-\frac {4 \, a^{3} - 12 i \, a^{2} - 12 \, a + 4 i}{a^{3} + 3 i \, a^{2} - 3 \, a - i}}}{2 \, a - 2 i}\right ) + 8 \, b x + {\left (2 \, {\left (-i \, a + 1\right )} b x - 2 i \, a^{2} + 4 \, a + 2 i\right )} \log \left (-b x - a + \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}\right ) + 8 \, a + 8 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} + 8 i}{{\left (2 \, a + 2 i\right )} b x + 2 \, a^{2} + 4 i \, a - 2} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
giac [B] time = 0.36, size = 259, normalized size = 1.93 \[ -\frac {{\left (a^{2} i + 2 \, a - i\right )} \log \left (\frac {{\left | -2 \, x {\left | b \right |} + 2 \, \sqrt {{\left (b x + a\right )}^{2} + 1} - 2 \, \sqrt {a^{2} + 1} \right |}}{{\left | -2 \, x {\left | b \right |} + 2 \, \sqrt {{\left (b x + a\right )}^{2} + 1} + 2 \, \sqrt {a^{2} + 1} \right |}}\right )}{\sqrt {a^{2} + 1} {\left (a + i\right )}} - \frac {b \log \left (-3 \, {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )}^{2} a b - a^{3} b - 2 \, {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )}^{2} b i - 2 \, a^{2} b i - {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )}^{3} {\left | b \right |} - 3 \, {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )} a^{2} {\left | b \right |} - 4 \, {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )} a i {\left | b \right |} + a b + {\left (x {\left | b \right |} - \sqrt {{\left (b x + a\right )}^{2} + 1}\right )} {\left | b \right |}\right )}{3 \, i {\left | b \right |}} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maple [B] time = 0.17, size = 818, normalized size = 6.10 \[ \frac {1}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {i a^{5}}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {i a^{4} b x}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {6 i \left (i a +1\right )^{2} b \left (2 b^{2} x +2 a b \right )}{\left (4 b^{2} \left (a^{2}+1\right )-4 a^{2} b^{2}\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {2 i a}{\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {3 b a x}{\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}-\frac {4 i a^{3}}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}-\frac {\ln \left (\frac {2 a^{2}+2+2 a b x +2 \sqrt {a^{2}+1}\, \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}{x}\right )}{\left (a^{2}+1\right )^{\frac {3}{2}}}+\frac {3 a^{2}}{\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {3}{\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {3 a^{3} b x}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}-\frac {a b x}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}-\frac {3 i a^{2} b x}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {i \ln \left (\frac {2 a^{2}+2+2 a b x +2 \sqrt {a^{2}+1}\, \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}{x}\right ) a^{3}}{\left (a^{2}+1\right )^{\frac {3}{2}}}+\frac {2 i a^{3}}{\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}-\frac {i b \ln \left (\frac {b^{2} x +a b}{\sqrt {b^{2}}}+\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}\right )}{\sqrt {b^{2}}}+\frac {i b x}{\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}-\frac {3 i \ln \left (\frac {2 a^{2}+2+2 a b x +2 \sqrt {a^{2}+1}\, \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}{x}\right ) a}{\left (a^{2}+1\right )^{\frac {3}{2}}}+\frac {3 i a}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {2 i b \,a^{2} x}{\sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}-\frac {4 a^{2}}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {3 a^{4}}{\left (a^{2}+1\right ) \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}+\frac {3 \ln \left (\frac {2 a^{2}+2+2 a b x +2 \sqrt {a^{2}+1}\, \sqrt {b^{2} x^{2}+2 a b x +a^{2}+1}}{x}\right ) a^{2}}{\left (a^{2}+1\right )^{\frac {3}{2}}} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maxima [B] time = 0.34, size = 738, normalized size = 5.51 \[ \frac {2 i \, a^{2} b^{3} x}{{\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}} - \frac {{\left (4 i \, a^{2} + 4 i\right )} b^{3} x}{4 \, {\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}} + \frac {{\left (-i \, a^{3} - 3 \, a^{2} + 3 i \, a + 1\right )} a b^{3} x}{{\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} {\left (a^{2} + 1\right )}} + \frac {i \, {\left (a^{2} + 1\right )} a b^{2}}{{\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}} + \frac {{\left (-i \, a^{3} - 3 \, a^{2} + 3 i \, a + 1\right )} a^{2} b^{2}}{{\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} {\left (a^{2} + 1\right )}} + \frac {{\left (-3 i \, a b^{2} - 3 \, b^{2}\right )} a b x}{{\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}} - \frac {{\left (-3 i \, a^{2} b - 6 \, a b + 3 i \, b\right )} b^{2} x}{{\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}} + \frac {{\left (-3 i \, a b^{2} - 3 \, b^{2}\right )} a^{2}}{{\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}} - \frac {{\left (-3 i \, a^{2} b - 6 \, a b + 3 i \, b\right )} a b}{{\left (a^{2} b^{2} - {\left (a^{2} + 1\right )} b^{2}\right )} \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1}} - \frac {{\left (-i \, a^{3} - 3 \, a^{2} + 3 i \, a + 1\right )} \operatorname {arsinh}\left (\frac {2 \, a b x}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}} {\left | x \right |}} + \frac {2 \, a^{2}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}} {\left | x \right |}} + \frac {2}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}} {\left | x \right |}}\right )}{{\left (a^{2} + 1\right )}^{\frac {3}{2}}} + \frac {-i \, a^{3} - 3 \, a^{2} + 3 i \, a + 1}{\sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} {\left (a^{2} + 1\right )}} - \frac {-3 i \, a b^{2} - 3 \, b^{2}}{\sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 1} b^{2}} - i \, \operatorname {arsinh}\left (\frac {2 \, {\left (b^{2} x + a b\right )}}{\sqrt {-4 \, a^{2} b^{2} + 4 \, {\left (a^{2} + 1\right )} b^{2}}}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
mupad [F] time = 0.00, size = -1, normalized size = -0.01 \[ \int \frac {{\left (1+a\,1{}\mathrm {i}+b\,x\,1{}\mathrm {i}\right )}^3}{x\,{\left ({\left (a+b\,x\right )}^2+1\right )}^{3/2}} \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ - i \left (\int \frac {i}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\, dx + \int \left (- \frac {3 a}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\right )\, dx + \int \frac {a^{3}}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\, dx + \int \left (- \frac {3 i a^{2}}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\right )\, dx + \int \left (- \frac {3 b x}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\right )\, dx + \int \frac {b^{3} x^{3}}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\, dx + \int \left (- \frac {3 i b^{2} x^{2}}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\right )\, dx + \int \frac {3 a b^{2} x^{2}}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\, dx + \int \frac {3 a^{2} b x}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\, dx + \int \left (- \frac {6 i a b x}{a^{2} x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + 2 a b x^{2} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + b^{2} x^{3} \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1} + x \sqrt {a^{2} + 2 a b x + b^{2} x^{2} + 1}}\right )\, dx\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________