Related simulators
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SIR Epidemic Model
S + I + R = 1: βSI and γI; ℛ₀ ≈ β/γ, herd threshold 1 − 1/ℛ₀; RK4 time plot.
SIRS with Waning Immunity
SIRS compartments with waning ωR→S, booster pulses, seasonal β(t), endemic equilibrium, and R0 vs fade-out.
Dose-Response & Hill Curves
Pharmacologic Hill E(C): EC50/IC50, Hill slope nH, agonist vs antagonist shifts, and therapeutic-window sketch (ED50 vs TD50).
Earthquake Aftershocks: Omori + Gutenberg-Richter
Modified Omori aftershock decay n(t)=K/(t+c)^p combined with Gutenberg-Richter magnitude-frequency curves, b-value, and a synthetic catalog.
Enzyme Inhibition Kinetics
Competitive, noncompetitive, and uncompetitive inhibition: Michaelis-Menten curves, apparent Km/Vmax shifts, and a Lineweaver-Burk sketch.
Infinite Slope Stability
Limit-equilibrium factor of safety for a shallow planar slide: slope angle, cohesion, friction, depth, and rainfall-driven pore pressure set the landslide threshold.