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In [1]:

print ("hello,world!")

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hello,world!

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the python notebook hello

using markdown

hellohello

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In [4]:

for i in range(3):
print("the number is=%d"%(i))

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the number is=0
the number is=1
the number is=2

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In [6]:

for i in range(20):
if(i<10):
print("the num is less than 10---%d"%(i))
elif(i==10):
print ("the num is =10---%d"%(i))
else:
print("the num is greater than 10---%d"%(i))

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the num is less than 10---0
the num is less than 10---1
the num is less than 10---2
the num is less than 10---3
the num is less than 10---4
the num is less than 10---5
the num is less than 10---6
the num is less than 10---7
the num is less than 10---8
the num is less than 10---9
the num is =10---10
the num is greater than 10---11
the num is greater than 10---12
the num is greater than 10---13
the num is greater than 10---14
the num is greater than 10---15
the num is greater than 10---16
the num is greater than 10---17
the num is greater than 10---18
the num is greater than 10---19

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In [7]:

def hello():
print("hello,world!!!")
hello()

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hello,world!!!

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In [11]:

def hello(name='ntini'):
hello()
hello('nitin')

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In [12]:

animals=[]
animals.append("bear")
animals.append("lion")
animals.append("monkey")
animals.append("unicorn")

print(animals)

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['bear', 'lion', 'monkey', 'unicorn']

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In [15]:

animals=["bear","lion","monkey","unicorn"]
print (animals)

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['bear', 'lion', 'monkey', 'unicorn']

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In [16]:

print (animals[0])

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bear

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In [17]:

for animal in animals:
print(animal)

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bear
lion
monkey
unicorn

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In [18]:

a=animals.pop()
print(a)
print(animals)

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unicorn
['bear', 'lion', 'monkey']

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In [20]:

animals.append("bear")
print (animals)
animals.count("bear")

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['bear', 'lion', 'monkey', 'bear', 'bear']

Out[20]:

3

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In [21]:

animals.pop()

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Out[21]:

'bear'

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In [22]:

print(animals)

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['bear', 'lion', 'monkey', 'bear']

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In [23]:

print(animals)
new=[a for a in animals if a!="bear"]

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['bear', 'lion', 'monkey', 'bear']

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In [25]:

print(new)

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['lion', 'monkey']

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In [26]:

new=[a.upper() for a in animals if a!="bear"]
print (new)

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['LION', 'MONKEY']

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In [30]:

import random
#generate a random variable
random.randint(0,10)

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Out[30]:

5

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In [31]:

import numpy as np
np.power(2,2)

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Out[31]:

4

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In [33]:

from random import *
randint(0,10)

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Out[33]:

10

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In [34]:

import numpy as np
import matplotlib.pyplot as plt

X=np.linspace(-np.pi,np.pi,256,endpoint=True)
C,S=np.cos(X),np.sin(X)

plt.plot(X,C)
plt.plot(X,S)

plt.show()

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In [ ]:

``````