Optimal. Leaf size=19 \[ -\frac {(2-b x)^{3/2}}{3 x^{3/2}} \]
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Rubi [A]
time = 0.00, antiderivative size = 19, normalized size of antiderivative = 1.00, number of steps
used = 1, number of rules used = 1, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.062, Rules used = {37}
\begin {gather*} -\frac {(2-b x)^{3/2}}{3 x^{3/2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 37
Rubi steps
\begin {align*} \int \frac {\sqrt {2-b x}}{x^{5/2}} \, dx &=-\frac {(2-b x)^{3/2}}{3 x^{3/2}}\\ \end {align*}
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Mathematica [A]
time = 0.05, size = 19, normalized size = 1.00 \begin {gather*} -\frac {(2-b x)^{3/2}}{3 x^{3/2}} \end {gather*}
Antiderivative was successfully verified.
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Mathics [C] Result contains higher order function than in optimal. Order 9 vs. order 2 in
optimal.
time = 2.59, size = 77, normalized size = 4.05 \begin {gather*} \text {Piecewise}\left [\left \{\left \{\frac {\sqrt {b} \left (-2+b x\right ) \sqrt {\frac {2-b x}{b x}}}{3 x},\frac {1}{\text {Abs}\left [b x\right ]}>\frac {1}{2}\right \}\right \},\frac {I b^{\frac {3}{2}} \sqrt {1-\frac {2}{b x}}}{3}-\frac {2 I \sqrt {b} \sqrt {1-\frac {2}{b x}}}{3 x}\right ] \end {gather*}
Warning: Unable to verify antiderivative.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(28\) vs.
\(2(13)=26\).
time = 0.14, size = 29, normalized size = 1.53
method | result | size |
gosper | \(-\frac {\left (-b x +2\right )^{\frac {3}{2}}}{3 x^{\frac {3}{2}}}\) | \(14\) |
meijerg | \(-\frac {2 \sqrt {2}\, \left (-\frac {b x}{2}+1\right )^{\frac {3}{2}}}{3 x^{\frac {3}{2}}}\) | \(17\) |
default | \(-\frac {2 \sqrt {-b x +2}}{3 x^{\frac {3}{2}}}+\frac {b \sqrt {-b x +2}}{3 \sqrt {x}}\) | \(29\) |
risch | \(-\frac {\sqrt {\left (-b x +2\right ) x}\, \left (x^{2} b^{2}-4 b x +4\right )}{3 x^{\frac {3}{2}} \sqrt {-b x +2}\, \sqrt {-x \left (b x -2\right )}}\) | \(47\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.27, size = 13, normalized size = 0.68 \begin {gather*} -\frac {{\left (-b x + 2\right )}^{\frac {3}{2}}}{3 \, x^{\frac {3}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.32, size = 18, normalized size = 0.95 \begin {gather*} \frac {{\left (b x - 2\right )} \sqrt {-b x + 2}}{3 \, x^{\frac {3}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] Result contains complex when optimal does not.
time = 0.80, size = 83, normalized size = 4.37 \begin {gather*} \begin {cases} \frac {b^{\frac {3}{2}} \sqrt {-1 + \frac {2}{b x}}}{3} - \frac {2 \sqrt {b} \sqrt {-1 + \frac {2}{b x}}}{3 x} & \text {for}\: \frac {1}{\left |{b x}\right |} > \frac {1}{2} \\\frac {i b^{\frac {3}{2}} \sqrt {1 - \frac {2}{b x}}}{3} - \frac {2 i \sqrt {b} \sqrt {1 - \frac {2}{b x}}}{3 x} & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 35 vs.
\(2 (13) = 26\).
time = 0.01, size = 80, normalized size = 4.21 \begin {gather*} -\frac {3\cdot 2 b^{2} b^{3} \sqrt {-b x+2} \sqrt {-b x+2} \sqrt {-b x+2} \sqrt {-b \left (-b x+2\right )+2 b}}{\left |b\right | b\cdot 18 \left (-b \left (-b x+2\right )+2 b\right )^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.22, size = 18, normalized size = 0.95 \begin {gather*} \frac {\sqrt {2-b\,x}\,\left (\frac {b\,x}{3}-\frac {2}{3}\right )}{x^{3/2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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