(maxima.info)Introduction to Special Functions

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15.1 Introduction to Special Functions
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Special function notation follows:

     bessel_j (index, expr)         Bessel function, 1st kind
     bessel_y (index, expr)         Bessel function, 2nd kind
     bessel_i (index, expr)         Modified Bessel function, 1st kind
     bessel_k (index, expr)         Modified Bessel function, 2nd kind

     hankel_1 (v,z)                 Hankel function of the 1st kind
     hankel_2 (v,z)                 Hankel function of the 2nd kind
     struve_h (v,z)                 Struve H function
     struve_l (v,z)                 Struve L function

     assoc_legendre_p[v,u] (z)      Legendre function of degree v and order u
     assoc_legendre_q[v,u] (z)      Legendre function, 2nd kind

     %f[p,q] ([], [], expr)         Generalized Hypergeometric function
     gamma (z)                      Gamma function
     gamma_incomplete_lower (a,z)   Lower incomplete gamma function
     gamma_incomplete (a,z)         Tail of incomplete gamma function
     hypergeometric (l1, l2, z)     Hypergeometric function
     slommel
     %m[u,k] (z)                    Whittaker function, 1st kind
     %w[u,k] (z)                    Whittaker function, 2nd kind
     erfc (z)                       Complement of the erf function

     expintegral_e (v,z)            Exponential integral E
     expintegral_e1 (z)             Exponential integral E1
     expintegral_ei (z)             Exponential integral Ei
     expintegral_li (z)             Logarithmic integral Li
     expintegral_si (z)             Exponential integral Si
     expintegral_ci (z)             Exponential integral Ci
     expintegral_shi (z)            Exponential integral Shi
     expintegral_chi (z)            Exponential integral Chi

     kelliptic (z)                  Complete elliptic integral of the first
                                    kind (K)
     parabolic_cylinder_d (v,z)     Parabolic cylinder D function