Solving Symbolic Equations with PRESS
We describe a program, PRESS, (PRolog Equation Solving System) for solving symbolic, transcendental, non-differential equations in one or more variables. PRESS solves autonomously, i.e. without guidance from the user. The methods used for solving equations are described, together with the service facilities. The principal technique, metal-level inference, appears to be relevant to the broader field of symbolic and algebraic manipulation.