Double Precision Mathematical Functions

acos acosh asin asinh atan atan2 atanh cbrt ceil copysign cos cosh cospi erf erfc erfcinv erfcx erfinv exp exp10 exp2 expm1 fabs fdim floor fma fmax fmin fmod frexp hypot ilogb isfinite isinf isnan j0 j1 jn ldexp lgamma llrint llround log log10 log1p log2 logb lrint lround modf nan nearbyint nextafter pow rcbrt remainder remquo rint round rsqrt scalbln scalbn signbit sin sincos sinh sinpi sqrt tan tanh tgamma trunc y0 y1 yn

__device__ double jn ( int  n, double  x   ) Calculate the value of the Bessel function of the first kind of order n for the input argument x, . Returns: Returns the value of the Bessel function of the first kind of order n. jn(n, NaN) returns NaN. jn(n, x) returns NaN for n < 0. jn(n, ) returns +0. Note: For accuracy information for this function see the CUDA C Programming Guide, Appendix C, Table C-2.