Closed as off-topic by,,,, user61527 Jun 5 '14 at 22:50 This question appears to be off-topic. The users who voted to close gave these specific reasons: • 'This question is not about mathematics, within the scope defined in the.' – Tom Oldfield, Community • ' This question is missing context or other details: Please by providing additional context, which ideally includes your thoughts on the problem and any attempts you have made to solve it. This information helps others identify where you have difficulties and helps them write answers appropriate to your experience level.' – Grigory M, apnorton, Norbert If this question can be reworded to fit the rules in the, please. You can use octave instead (this is a free and open clone of matlab). You can assess your ODE system by a vector function such as: function dx = f(x,t) dx(1) = x(2) - x(1); dx(2) = x(1)*(4-x(2)); end Then you can solve it using lsode method for a given set of initial condition on a defined time range: xs = lsode(@f,[1,2],0:0.01:10); You can also plot the vector field associated with the system using quiver function.

#!/usr/bin/python import datetime import ephem def get_phase_on_day(year,month,day): ''Returns a floating-point number from 0-1. Where 0=new, 0.5=full, 1=new'' #Ephem stores its date numbers as floating points, which the following uses #to conveniently extract the percent time between one new moon and the next #This corresponds. Plotting Differential Equation Phase Diagrams. By plotting several trajectories you will get a preciser idea of phase diagram. Bad Manners Live And Loud Rare. Programming Puzzles. Phasego - PHASEGO: A toolkit for automatic calculation and plot of phase diagram.

Printing xs over it give you the trajectory for the initial conditions you have chosen. Textbook Of Medical Biochemistry By Chatterjee Pdf File more. By plotting several trajectories you will get a preciser idea of phase diagram associated with. The following plots have been produced with octave using the above procedure.