Optimal. Leaf size=65 \[ -\frac {a \sqrt {a^2+2 a b x+b^2 x^2}}{x (a+b x)}+\frac {b \sqrt {a^2+2 a b x+b^2 x^2} \log (x)}{a+b x} \]
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Rubi [A]
time = 0.01, antiderivative size = 65, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 2, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {660, 45}
\begin {gather*} \frac {b \log (x) \sqrt {a^2+2 a b x+b^2 x^2}}{a+b x}-\frac {a \sqrt {a^2+2 a b x+b^2 x^2}}{x (a+b x)} \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 660
Rubi steps
\begin {align*} \int \frac {\sqrt {a^2+2 a b x+b^2 x^2}}{x^2} \, dx &=\frac {\sqrt {a^2+2 a b x+b^2 x^2} \int \frac {a b+b^2 x}{x^2} \, dx}{a b+b^2 x}\\ &=\frac {\sqrt {a^2+2 a b x+b^2 x^2} \int \left (\frac {a b}{x^2}+\frac {b^2}{x}\right ) \, dx}{a b+b^2 x}\\ &=-\frac {a \sqrt {a^2+2 a b x+b^2 x^2}}{x (a+b x)}+\frac {b \sqrt {a^2+2 a b x+b^2 x^2} \log (x)}{a+b x}\\ \end {align*}
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Mathematica [A]
time = 0.01, size = 31, normalized size = 0.48 \begin {gather*} \frac {\sqrt {(a+b x)^2} (-a+b x \log (x))}{x (a+b x)} \end {gather*}
Antiderivative was successfully verified.
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Maple [C] Result contains higher order function than in optimal. Order 9 vs. order
3.
time = 0.14, size = 23, normalized size = 0.35
method | result | size |
default | \(\frac {\mathrm {csgn}\left (b x +a \right ) \left (\ln \left (-b x \right ) b x -a \right )}{x}\) | \(23\) |
risch | \(-\frac {a \sqrt {\left (b x +a \right )^{2}}}{x \left (b x +a \right )}+\frac {b \ln \left (x \right ) \sqrt {\left (b x +a \right )^{2}}}{b x +a}\) | \(44\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 87 vs.
\(2 (43) = 86\).
time = 0.29, size = 87, normalized size = 1.34 \begin {gather*} \left (-1\right )^{2 \, b^{2} x + 2 \, a b} b \log \left (2 \, b^{2} x + 2 \, a b\right ) - \left (-1\right )^{2 \, a b x + 2 \, a^{2}} b \log \left (\frac {2 \, a b x}{{\left | x \right |}} + \frac {2 \, a^{2}}{{\left | x \right |}}\right ) - \frac {\sqrt {b^{2} x^{2} + 2 \, a b x + a^{2}}}{x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 2.29, size = 13, normalized size = 0.20 \begin {gather*} \frac {b x \log \left (x\right ) - a}{x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.03, size = 7, normalized size = 0.11 \begin {gather*} - \frac {a}{x} + b \log {\left (x \right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.69, size = 24, normalized size = 0.37 \begin {gather*} b \log \left ({\left | x \right |}\right ) \mathrm {sgn}\left (b x + a\right ) - \frac {a \mathrm {sgn}\left (b x + a\right )}{x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.26, size = 103, normalized size = 1.58 \begin {gather*} \ln \left (a\,b+\sqrt {{\left (a+b\,x\right )}^2}\,\sqrt {b^2}+b^2\,x\right )\,\sqrt {b^2}-\frac {\sqrt {a^2+2\,a\,b\,x+b^2\,x^2}}{x}-\frac {a\,b\,\ln \left (a\,b+\frac {a^2}{x}+\frac {\sqrt {a^2}\,\sqrt {a^2+2\,a\,b\,x+b^2\,x^2}}{x}\right )}{\sqrt {a^2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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