Saved state of the Runge Kutta solver. Attributes: y1: Tensor giving the function value at the end of the last time step. f1: Tensor giving derivative at the end of the last time step. t0: scalar float64 Tensor giving start of the last time step. t1: scalar float64 Tensor giving e
| 246 | |
| 247 | |
| 248 | class _RungeKuttaState( |
| 249 | collections.namedtuple('_RungeKuttaState', |
| 250 | 'y1, f1, t0, t1, dt, interp_coeff')): |
| 251 | """Saved state of the Runge Kutta solver. |
| 252 | |
| 253 | Attributes: |
| 254 | y1: Tensor giving the function value at the end of the last time step. |
| 255 | f1: Tensor giving derivative at the end of the last time step. |
| 256 | t0: scalar float64 Tensor giving start of the last time step. |
| 257 | t1: scalar float64 Tensor giving end of the last time step. |
| 258 | dt: scalar float64 Tensor giving the size for the next time step. |
| 259 | interp_coef: list of Tensors giving coefficients for polynomial |
| 260 | interpolation between `t0` and `t1`. |
| 261 | """ |
| 262 | |
| 263 | |
| 264 | class _History( |
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