fn dopri45_step(
pos: [f64; 3],
vel: [f64; 3],
time: f64,
h: f64,
mu_val: f64,
thrust: &ThrustProfile,
) -> ([f64; 3], [f64; 3], [f64; 3], [f64; 3])Expand description
Perform one RK45 Dormand-Prince step. Returns (new_pos, new_vel, err_pos, err_vel). Uses 7 stages (FSAL: k7 of this step = k1 of next step).