A polynomial is a convoluted code.
 Unlike polynomials they cannot in general be explicitly and fully written down (just like irrational numbers cannot), but the rules for manipulating their terms are the same as for polynomials
=== Exponential polynomials ===A bivariate polynomial where the second variable is substituted for an exponential function applied to the first variable, for example P(x, ex), may be called an exponential polynomial

