Table III.

Algorithmic performance. Characteristic quadratic convergence of global Newton Raphson iteration, illustrated in terms of the representative residuals of the relative error during five different phases of the cardiac cycle.

	phase 0 upstroke [0.0125 s]	phase 1 early repolarization [0.050 ms]	phase 2 plateau [0.125 s]	phase 3 final repolarization [0.250 s]	phase 4 resting state [0.750 s]
iteration 1	1.0000E+00	1.0000E+00	1.0000E+00	1.0000E+00	1.0000E–01
iteration 2	2.8851E–01	9.2488E–06	1.9453E–04	1.3929E–04	9.1883E–06
iteration 3	1.5778E–02	5.1421E–11	4.8334E–10	1.6442E–09	2.8551E–10
iteration 4	1.0136E–04	–	–	4.5720E–14	–
iteration 5	6.8749E–08	–	–	–	–
iteration 6	7.3132E–14	–	–	–	–