MATLAB Function Reference    

Specialized Math Functions
airy Airy functions
besselh Bessel functions of the third kind (Hankel functions)
besseli, besselk Modified Bessel functions
besselj, bessely Bessel functions
beta, betainc, betaln Beta functions
ellipj Jacobi elliptic functions
ellipke Complete elliptic integrals of the first and second kind
erf, erfc, erfcx, erfinv Error functions
expint Exponential integral
factorial Factorial function
gamma, gammainc, gammaln Gamma functions
legendre Associated Legendre functions
pow2 Base 2 power and scale floating-point numbers
rat, rats Rational fraction approximation

 Elementary Math Functions Coordinate System Conversion