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scipy.special.modfresnelp
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scipy.special.modfresnelp(x[, out1, out2]) = <ufunc 'modfresnelp'>
(fp,kp)=modfresnelp(x) returns the modified fresnel integrals F_+(x) and K_+(x)
as fp=integral(exp(1j*t*t),t=x..inf) and kp=1/sqrt(pi)*exp(-1j*(x*x+pi/4))*fp