ɪf ðə dˈaɪoʊd ɪz ɪn ɐ sˈɜːkɪt kəntˈeɪnɪŋ ɐ mˈɛmɚɹi ˈɛlɪmənt, sˈʌtʃ ɐz ɐ kəpˈæsɪɾɚ ɔːɹ ɪndˈʌktɚ, ðˈɛn ðə sˈɜːkɪt kæn biː ɹˌɛpɹᵻzˈɛntᵻd æz ɐ dˌɪfɚɹˈɛnʃəl vˌɛɹɪˈeɪʃənəl ɪniːkwˈɔlᵻɾi.
If the diode is in a circuit containing a memory element, such as a capacitor or inductor, then the circuit can be represented as a differential variational inequality.