# coding: utf-8

# In[120]:

import matplotlib.pyplot as plt


# In[121]:

import numpy as np


# In[122]:

x = np.arange(10)
y = x**2
yy = x**3 




# In[124]:

plt.plot(x,y)


# In[125]:

plt.plot(x,y,'o')


# In[126]:

# multiple lines in a plot
plt.plot(x,y,'o')
plt.plot(x, yy, 'g')


# In[127]:

# aggiungiamo anche alcuni dettagli
plt.grid()
plt.xlabel('x / unit')
plt.ylabel('y / unit')
plt.title('First plot')
plt.plot(x,y,'o')
plt.plot(x, yy, 'g')
# save the plot
plt.savefig('plot.png', dpi=250)


#### Object Oriented interface

# In[135]:

fig = plt.figure()

#we need to add one or more subplot
ax1 = fig.add_subplot(221)
ax2 = fig.add_subplot(222)
ax3 = fig.add_subplot(223)

# let's fill the subplot
ax1.plot(x,y)
ax2.plot(x,y**2, linestyle='--')  # dashed line
l, = ax3.plot(x,y**4, 'ko--')  # markers
l.set_label('third')

ax3.legend()

plt.show() # or just show()


# In[115]:

x


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