Lotka-Volterra Step Calculator
Advance one Euler timestep of the Lotka-Volterra prey-predator equations: dx/dt = αx − βxy and dy/dt = δxy − γy. Reports...
Advance one Euler timestep of the Lotka-Volterra prey-predator equations: dx/dt = αx − βxy and dy/dt = δxy − γy. Reports...
Convert a daily dose of an opioid to its morphine milligram equivalents (MME) using CDC conversion factors. Defaults are...
Calculates the Poisson PMF and CDF from event rate λ and number of events k for modelling rare events in a fixed time/sp...
Suggest bedtimes (or wake times) so you wake at the end of a 90-minute sleep cycle, plus a 14-minute average to fall asl...
Estimates yield to call (YTC) using linear interpolation between two trial rates that bracket zero price difference, for...
Estimate the total blood volume in litres for an adult using the Nadler formula, which uses height (in metres) and body...
Estimate body fat percentage from circumference measurements using the US Navy tape-measure method.
Compute the fractional excretion of urea — useful in patients on diuretics, where FE_Na can be misleading: FE_urea = (ur...
Compute the magnetic field at the geometric centre of a circular current loop using the Biot-Savart law: B = μ₀I / (2R),...
Compute the per-dose amount of a drug from a mg-per-kilogram dose and the patient's body weight, plus the total daily am...
Compute the IOM-recommended total and weekly weight gain for a singleton pregnancy from pre-pregnancy BMI and current we...
Applies the work-energy theorem to calculate net work done on an object from its initial and final speeds, plus individu...
Estimated daily calories are a loose target, not a contract. A quick guide to using the number without letting it use you.
BMI is a one-number screen, not a diagnosis. Here is how to read it honestly — and what to look at alongside it.