Reaction-diffusion
Wave type
Click/drag on the profile to paint u = 1 (hold Shift to erase).
Readouts
Measured speed
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Theory
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Front position
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Time
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Fisher: u_t = D u_xx + r u(1-u), v = 2 sqrt(D r). Bistable: u_t = D u_xx + r u(1-u)(u-a), v = sqrt(D r/2) (1-2a).