1. A method for providing an automated assistance to design an analog non linear circuit which is intended to work under transient conditions, said method comprising: at least one operation of digital processing performing a process, called “transient instant solving procedure”, which performs a numerical simulation that uses a given set of sizes and biases for at least one transistor of said circuit, so as to provide a set of local behavior parameters for at least one node of said circuit at the current time, said transient instant solving procedure comprising a plurality of iterations, unto a positive result from a convergence test, of executing an evaluation when under transient conditions of a graph representing an analysis view of said circuit, called “transient analysis view graph evaluation”, said transient analysis view graph evaluation comprising the following steps: executing a sequential evaluation of a set of data, called “rule data”, said evaluation providing a set of local behavior parameters for at least one node of said circuit, where said rule data represents a set of rule that comprise: on the first hand, dependencies between variables representing electrical properties of one or several nodes or physical properties of one or several transistors of said circuit; on the other hand, mathematical operators, called temporal operators, that rule said dependencies when said one or several transistors are working under transient conditions, said temporal operators being obtained through executing an inversion of a functional model of a transistor; and applying a set of Newton Raphson Constraints to said sequential evaluation.