Jacobian 89 v1.0     By Jake Griffin (Jrock7286@aol.com)

jacobian is a function that returns the jacobian of a set of functions.  This program
makes multi variable calculus MUCH easier!

Syntax:
jacobian(function list, variable list)

Examples:

Jacobian of the set of functions x=u^2  y=v^2  z=w^2
jacobian({u^2,v^2,w^2},{u,v,w}) -> 8uvw

Jacobian of the set s=sin(x)  t=cos(y)
jacobian({sin(x),cos(y)},{x,y}) -> -cos(x)sin(y)