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The horizontal axis plots t while vertical axis plots V (l over 4, t). The graph plots a square waveform at V equals V sub 1-plus between T over 4 and 7 T over 4. The waveform steps-up to (1 plus gamma sub L) V sub 1-plus between 7 T over 4 and 9 T over 4. It again steps-up to (1 plus gamma sub L plus gamma sub g times gamma sub L) V sub 1-plus between 9 T over 4 and 15 T over 4. It further steps-up to (1 plus gamma sub L plus gamma sub g times gamma sub L plus gamma sub g times gamma sub L - squared) V sub 1-plus between 15 T over 4 and 17 T over 4. In the final segment, the waveform steps-up to (1 plus gamma sub L plus gamma sub g times gamma sub L plus gamma sub g times gamma sub L squared plus gamma sub g squared times gamma sub L - squared) V sub 1-plus after 17 T over 4.