Mathematical Models: Mechanical Vibrations, Population Dynamics, and Traffic Flow : an Introduction to Applied Mathematics |
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Page 155
... logistic equation which models this species . What is the expected nonzero equilibrium population ? 37.6 . Suppose we are considering the growth as measured over a time △ t . The growth rate is defined by equation 32.1 . What nonlinear ...
... logistic equation which models this species . What is the expected nonzero equilibrium population ? 37.6 . Suppose we are considering the growth as measured over a time △ t . The growth rate is defined by equation 32.1 . What nonlinear ...
Page 159
... Logistic Equation Although the logistic equation , dN dt = N ( a - bN ) , ( 39.1 ) was qualitatively analyzed in the previous section , more precise quantitative behavior may at times be desired . An explicit solution to the logistic ...
... Logistic Equation Although the logistic equation , dN dt = N ( a - bN ) , ( 39.1 ) was qualitatively analyzed in the previous section , more precise quantitative behavior may at times be desired . An explicit solution to the logistic ...
Page 168
... logistic differential equation will approach the environment's carrying capacity without going beyond it ; that is ... logistic equation with a delay , equation 40.10 , may sometimes have this property , as illustrated by the numerical ...
... logistic differential equation will approach the environment's carrying capacity without going beyond it ; that is ... logistic equation with a delay , equation 40.10 , may sometimes have this property , as illustrated by the numerical ...
Contents
NEWTONS | 6 |
OSCILLATION OF A SPRINGMASS SYSTEM | 12 |
QUALITATIVE AND QUANTITATIVE BEHAVIOR | 18 |
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Mathematical Models: Mechanical Vibrations, Population Dynamics, and Traffic ... Richard Haberman No preview available - 1998 |
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amplitude of oscillation analyze approximation Assume birth c₁ calculation characteristics Consider constant coefficient corresponding d2x dt2 damping de/dt decreases delay depend derived determine difference equation discussed dx dt dx/dt energy integral equilibrium population equilibrium solution equivalent example exercise exponential Figure formula function growth rate Hint increases initial conditions initial value problem isoclines linearized stability analysis logistic equation mass mathematical model maximum method of characteristics motion moving N₁ Newton's nonlinear pendulum number of cars obtained occur ordinary differential equations oscillation P₁ partial differential equation period phase plane Pmax population growth potential energy r₁ result sharks shock Show shown in Fig simple harmonic motion Sketch the solution sketched in Fig slope solution curves solve species spring spring-mass system stable straight line Suppose Taylor series tion traffic flow trajectories Umax unstable equilibrium position variables vector x₁ yields zero