The enclosure of solutions of nonlinear resistive circuit equations

An algorithm for finding the whole solution set of nonlinear circuit equations is presented. The algorithm makes use of interval analysis techniques. Combining this algorithm with the continuation method, obtains effectively a simple or multibranched solution curve. Unlike other known algorithms, this algorithm guarantees that all components of a solution set contained in an initial bounded rectangular region will be found within a prescribed accuracy. Moreover, the new algorithm requires far less computer time