Integrand size = 12, antiderivative size = 88 \[ \int \frac {\cosh (f x)}{(d x)^{3/2}} \, dx=-\frac {2 \cosh (f x)}{d \sqrt {d x}}-\frac {\sqrt {f} \sqrt {\pi } \text {erf}\left (\frac {\sqrt {f} \sqrt {d x}}{\sqrt {d}}\right )}{d^{3/2}}+\frac {\sqrt {f} \sqrt {\pi } \text {erfi}\left (\frac {\sqrt {f} \sqrt {d x}}{\sqrt {d}}\right )}{d^{3/2}} \]
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Time = 0.08 (sec) , antiderivative size = 88, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.417, Rules used = {3378, 3389, 2211, 2235, 2236} \[ \int \frac {\cosh (f x)}{(d x)^{3/2}} \, dx=-\frac {\sqrt {\pi } \sqrt {f} \text {erf}\left (\frac {\sqrt {f} \sqrt {d x}}{\sqrt {d}}\right )}{d^{3/2}}+\frac {\sqrt {\pi } \sqrt {f} \text {erfi}\left (\frac {\sqrt {f} \sqrt {d x}}{\sqrt {d}}\right )}{d^{3/2}}-\frac {2 \cosh (f x)}{d \sqrt {d x}} \]
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Rule 2211
Rule 2235
Rule 2236
Rule 3378
Rule 3389
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \cosh (f x)}{d \sqrt {d x}}+\frac {(2 f) \int \frac {\sinh (f x)}{\sqrt {d x}} \, dx}{d} \\ & = -\frac {2 \cosh (f x)}{d \sqrt {d x}}-\frac {f \int \frac {e^{-f x}}{\sqrt {d x}} \, dx}{d}+\frac {f \int \frac {e^{f x}}{\sqrt {d x}} \, dx}{d} \\ & = -\frac {2 \cosh (f x)}{d \sqrt {d x}}-\frac {(2 f) \text {Subst}\left (\int e^{-\frac {f x^2}{d}} \, dx,x,\sqrt {d x}\right )}{d^2}+\frac {(2 f) \text {Subst}\left (\int e^{\frac {f x^2}{d}} \, dx,x,\sqrt {d x}\right )}{d^2} \\ & = -\frac {2 \cosh (f x)}{d \sqrt {d x}}-\frac {\sqrt {f} \sqrt {\pi } \text {erf}\left (\frac {\sqrt {f} \sqrt {d x}}{\sqrt {d}}\right )}{d^{3/2}}+\frac {\sqrt {f} \sqrt {\pi } \text {erfi}\left (\frac {\sqrt {f} \sqrt {d x}}{\sqrt {d}}\right )}{d^{3/2}} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 67, normalized size of antiderivative = 0.76 \[ \int \frac {\cosh (f x)}{(d x)^{3/2}} \, dx=\frac {e^{-f x} x \left (-1-e^{2 f x}+e^{f x} \sqrt {-f x} \Gamma \left (\frac {1}{2},-f x\right )+e^{f x} \sqrt {f x} \Gamma \left (\frac {1}{2},f x\right )\right )}{(d x)^{3/2}} \]
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Result contains complex when optimal does not.
Time = 0.03 (sec) , antiderivative size = 115, normalized size of antiderivative = 1.31
method | result | size |
meijerg | \(-\frac {i \sqrt {\pi }\, x^{\frac {3}{2}} \sqrt {2}\, \left (i f \right )^{\frac {3}{2}} \left (-\frac {2 \sqrt {2}\, {\mathrm e}^{f x}}{\sqrt {\pi }\, \sqrt {x}\, \sqrt {i f}}-\frac {2 \sqrt {2}\, {\mathrm e}^{-f x}}{\sqrt {\pi }\, \sqrt {x}\, \sqrt {i f}}-\frac {2 \sqrt {2}\, \sqrt {f}\, \operatorname {erf}\left (\sqrt {x}\, \sqrt {f}\right )}{\sqrt {i f}}+\frac {2 \sqrt {2}\, \sqrt {f}\, \operatorname {erfi}\left (\sqrt {x}\, \sqrt {f}\right )}{\sqrt {i f}}\right )}{4 \left (d x \right )^{\frac {3}{2}} f}\) | \(115\) |
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Leaf count of result is larger than twice the leaf count of optimal. 136 vs. \(2 (62) = 124\).
Time = 0.27 (sec) , antiderivative size = 136, normalized size of antiderivative = 1.55 \[ \int \frac {\cosh (f x)}{(d x)^{3/2}} \, dx=-\frac {\sqrt {\pi } {\left (d x \cosh \left (f x\right ) + d x \sinh \left (f x\right )\right )} \sqrt {\frac {f}{d}} \operatorname {erf}\left (\sqrt {d x} \sqrt {\frac {f}{d}}\right ) + \sqrt {\pi } {\left (d x \cosh \left (f x\right ) + d x \sinh \left (f x\right )\right )} \sqrt {-\frac {f}{d}} \operatorname {erf}\left (\sqrt {d x} \sqrt {-\frac {f}{d}}\right ) + \sqrt {d x} {\left (\cosh \left (f x\right )^{2} + 2 \, \cosh \left (f x\right ) \sinh \left (f x\right ) + \sinh \left (f x\right )^{2} + 1\right )}}{d^{2} x \cosh \left (f x\right ) + d^{2} x \sinh \left (f x\right )} \]
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Result contains complex when optimal does not.
Time = 1.42 (sec) , antiderivative size = 99, normalized size of antiderivative = 1.12 \[ \int \frac {\cosh (f x)}{(d x)^{3/2}} \, dx=- \frac {\sqrt {2} \sqrt {\pi } \sqrt {f} e^{- \frac {3 i \pi }{4}} S\left (\frac {\sqrt {2} \sqrt {f} \sqrt {x} e^{\frac {i \pi }{4}}}{\sqrt {\pi }}\right ) \Gamma \left (- \frac {1}{4}\right )}{2 d^{\frac {3}{2}} \Gamma \left (\frac {3}{4}\right )} + \frac {\cosh {\left (f x \right )} \Gamma \left (- \frac {1}{4}\right )}{2 d^{\frac {3}{2}} \sqrt {x} \Gamma \left (\frac {3}{4}\right )} \]
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none
Time = 0.18 (sec) , antiderivative size = 76, normalized size of antiderivative = 0.86 \[ \int \frac {\cosh (f x)}{(d x)^{3/2}} \, dx=-\frac {\frac {f {\left (\frac {\sqrt {\pi } \operatorname {erf}\left (\sqrt {d x} \sqrt {\frac {f}{d}}\right )}{\sqrt {\frac {f}{d}}} - \frac {\sqrt {\pi } \operatorname {erf}\left (\sqrt {d x} \sqrt {-\frac {f}{d}}\right )}{\sqrt {-\frac {f}{d}}}\right )}}{d} + \frac {2 \, \cosh \left (f x\right )}{\sqrt {d x}}}{d} \]
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\[ \int \frac {\cosh (f x)}{(d x)^{3/2}} \, dx=\int { \frac {\cosh \left (f x\right )}{\left (d x\right )^{\frac {3}{2}}} \,d x } \]
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Timed out. \[ \int \frac {\cosh (f x)}{(d x)^{3/2}} \, dx=\int \frac {\mathrm {cosh}\left (f\,x\right )}{{\left (d\,x\right )}^{3/2}} \,d x \]
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