Optimal. Leaf size=21 \[ -\frac {\sqrt {\pi } e^c}{2 b \text {erfi}(b x)} \]
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Rubi [A] time = 0.03, antiderivative size = 21, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 18, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.111, Rules used = {6375, 30} \[ -\frac {\sqrt {\pi } e^c}{2 b \text {Erfi}(b x)} \]
Antiderivative was successfully verified.
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Rule 30
Rule 6375
Rubi steps
\begin {align*} \int \frac {e^{c+b^2 x^2}}{\text {erfi}(b x)^2} \, dx &=\frac {\left (e^c \sqrt {\pi }\right ) \operatorname {Subst}\left (\int \frac {1}{x^2} \, dx,x,\text {erfi}(b x)\right )}{2 b}\\ &=-\frac {e^c \sqrt {\pi }}{2 b \text {erfi}(b x)}\\ \end {align*}
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Mathematica [A] time = 0.01, size = 21, normalized size = 1.00 \[ -\frac {\sqrt {\pi } e^c}{2 b \text {erfi}(b x)} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.56, size = 16, normalized size = 0.76 \[ -\frac {\sqrt {\pi } e^{c}}{2 \, b \operatorname {erfi}\left (b x\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {e^{\left (b^{2} x^{2} + c\right )}}{\operatorname {erfi}\left (b x\right )^{2}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {{\mathrm e}^{b^{2} x^{2}+c}}{\erfi \left (b x \right )^{2}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {e^{\left (b^{2} x^{2} + c\right )}}{\operatorname {erfi}\left (b x\right )^{2}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.10, size = 16, normalized size = 0.76 \[ -\frac {\sqrt {\pi }\,{\mathrm {e}}^c}{2\,b\,\mathrm {erfi}\left (b\,x\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.97, size = 24, normalized size = 1.14 \[ \begin {cases} - \frac {\sqrt {\pi } e^{c}}{2 b \operatorname {erfi}{\left (b x \right )}} & \text {for}\: b \neq 0 \\\tilde {\infty } x e^{c} & \text {otherwise} \end {cases} \]
Verification of antiderivative is not currently implemented for this CAS.
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