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Table 7.
CDG equation: 
relative error and time cost of PINN(tanh) and PINN(sine).
| Solution | Method | ||
|---|---|---|---|
| PINN(tanh) | PINN(sine) | ERR | |
| u(x, t) |  |
 |
72.03% |
| Time cost | 185 s | 312 s | − |