1. A method for providing automated assistance for designing an analog non-linear circuit which is intended to work under transient conditions, the method comprising: simulating a performance behavior of the circuit by performing at least one operation of digital processing, called “transient instant solving procedure,” which performs a numerical simulation using a given set of sizes and biases for at least one transistor of the circuit, so as to provide a set of local behavior parameters for at least one node of the 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 the 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 the circuit, where said rule data represents a set of rules that comprise: dependencies between variables representing electrical properties of one or several nodes or physical properties of one or several transistors of the circuit; and 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; applying a set of Newton Raphson Constraints to said sequential evaluation; and applying the results from the simulation of the performance behavior of the circuit to the design of the circuit.