Python 3.5.1 |Anaconda 2.5.0 (64-bit)
The attached script works well and plots when used in the Spyder console
But when used with Spyder IPython 4.0.3 the plot hangs.
When I try to run the script directly in IPython, I get the figure and
labels, but without any graph
What am I doing wrong?
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# -*- coding: utf-8 -*-
"""
Created on Tue May 17 01:14:17 2016
@author: cseligman
"""
#%%
import os
os.getcwd()
#os.mkdir('C:\\Users\\cseligman\\Dropbox\\Documents\\Pythonworkspace\\ODEs')
os.chdir('C:\\Users\\cseligman\\Dropbox\\Documents\\Pythonworkspace\\ODEs')
import math
import matplotlib
import matplotlib.pyplot as plt
# Initial conditions
y0 = 2.0
#Time step and final time
dt = 1.0 # days
tf = 364.0 # days
# Empty lists to hold time and solutions
tt = []
yy= []
# append initial values
tt.append(0.0)
yy.append(y0)
#parameters of our equation
a = 0.01
omega = 2.0*math.pi/365.0
# Iteration
while tt[-1] <= tf:
r = a * yy[-1] * (1 + math.sin(omega*tt[-1]))
yy.append(yy[-1]+ r * dt)
tt.append(tt[-1] + dt)
#%%
plt.figure(1)
plt.plot(tt,yy,'.')
plt.xlabel('Time_[days]')
plt.ylabel('Rats_[rats]')
plt.title('Euler_Solution')
plt.show()
#%%
