# Star Display
"""
"""
# Read Number of lines
N = int(input("Enter an odd number : "))
print("Star pattern : ")
tmp=N//2
for n in range(1,tmp+2,1):
print(" "*(tmp-n+1),end="")
print(" * "*((2*n)-1))
for n in range(tmp,0,-1):
print(" "*(tmp-n+1),end="")
print(" * "*((2*n)-1))
# Star Display
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Star pattern : ")
for n in range(N,0,-1):
print(" "*(N-n),end="")
print(" * "*((2*n)-1))
# Star Display
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Star pattern : ")
for n in range(1,N+1,1):
print(" "*(N-n),end="")
print(" * "*((2*n)-1))
# Star Display
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Star Pattern : ")
for n in range(N,0,-1):
print("* "*n)
# Star Display
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Star Pattern : ")
for n in range(1,N+1,1):
print("* "*n)
# Star Display
"""
"""
# Read Number of Rows and Columns
R = int(input("Enter number of Rows : "))
C = int(input("Enter number of Columns : "))
print("Star Display : ")
for n in range(1,R+1,1):
print("* "*C)
# Star Display
"""
# Read Number of Rows and Columns
R = int(input("Enter number of Rows : "))
C = int(input("Enter number of Columns : "))
print("Star Display : ")
print("* "*C)
for n in range(1,R-1,1):
print("* ",end="")
print(" "*(C-2),end="")
print("* ")
print("* "*C)
# Binary Display
"""
"""
# Read Number of Rows and Columns
R = int(input("Enter number of Rows : "))
C = int(input("Enter number of Columns : "))
print("Binary Display : ")
print("0 "*C)
for n in range(1,R-1,1):
print("0 ",end="")
print("1 "*(C-2),end="")
print("0 ")
print("0 "*C)
# Number Triangles
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Number Triangle : ")
for n in range(1,N+1,1):
print(" "*(N-n),end="")
for k in range(1,n+1,1):
print(str(k).center(4), end="")
for k in range(n-1,0,-1):
print(str(k).center(4), end="")
print()
for n in range(1,N+1,1):
print(" "*(n),end="")
for k in range(1,N-n+1,1):
print(str(k).center(4), end="")
for k in range(N-n-1,0,-1):
print(str(k).center(4), end="")
print()
# Number Triangles
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Number Triangle : ")
for n in range(1,N+1,1):
print(" "*(N-n),end="")
for k in range(1,n+1,1):
print(str(k).center(4), end="")
for k in range(n-1,0,-1):
print(str(k).center(4), end="")
print()
# Binary Triangles
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Binary Triangle : ")
for n in range(1,N+1,1):
i = n%2
for val in range (1,n+1,1):
print(i, end=" ")
i=(i+1)%2
print()
# Number Triangles
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Number Triangle : ")
i = 1
for n in range(1,N+1,1):
for val in range (1,n+1,1):
print(i, end=" ")
i+=1
print()
# Number Triangles
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Number Triangle : ")
for n in range(1,N+1,1):
for val in range (1,n+1,1):
print(n, end=" ")
print()
# Number Triangles
"""
"""
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Number Triangle : ")
for n in range(1,N+1,1):
for val in range (1,n+1,1):
print(val, end=" ")
print()
# Moving an object based on keypress
import sys,pygame
pygame.init()
screen = pygame.display.set_mode((500, 500))
pygame.display.set_caption("Moving object")
# Moving object starting co-ordinates and size
x = 200
y = 200
width = 20
height = 20
# Moving speed
step = 5
# infinite loop
while 1:
pygame.time.delay(10)
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
# Get the keys pressed
keys = pygame.key.get_pressed()
# Left arrow key - decrement in x axis
if keys[pygame.K_LEFT]and x>0:
x-=step
# Right arrow key - increment in x axis
if keys[pygame.K_RIGHT] and x<500-width:
x += step
# Up arrow key - decrement in y axis
if keys[pygame.K_UP] and y>0:
y -= step
# Down arrow key - increment in y axis
if keys[pygame.K_DOWN] and y<500-height:
y += step
# Set screen background and Place moving object on screen
screen.fill((255, 255, 255))
pygame.draw.rect(screen, (255, 0, 0), (x, y, width, height))
# Display movement
pygame.display.update()
pygame.quit()
# Number Triangles
# Pascals Triangle
"""
"""
# Factorial Function
def fact(Num):
if(Num==0):
return 1
else:
return Num*fact(Num-1)
# Read Number of lines
N = int(input("Enter number of Lines : "))
print("Pascal Triangle : ")
for n in range(0,N,1):
Nr = fact(n)
# For Alignment
print(" "*(N-n),end="")
for k in range(0,n+1,1):
term = (int)(Nr/(fact(k)*fact(n-k)))
print(str(term).center(6), end="")
print()
# Output
> python PascalTriangle.py
Enter number of Lines : 10
Pascal Triangle :
# Creating a simple barchart using matplotlib
# importing the required module
import matplotlib.pyplot as plt
# plotting the x and y axis values for two sets of data
plt.bar([1,2,3,4,5,6,7],[7.1,9.4,10.6,12.5,11.5,10.9,9.8], label="Chennai",width=.25)
plt.bar([1.25,2.25,3.25,4.25,5.25,6.25,7.25],[8.1,10.4,9.6,8.5,10.5,8.9,7.8], label="Kancheepuram",width=.25)
# Naming the axes and setting the legends
plt.legend()
plt.xlabel('Days')
plt.ylabel('Rainfall (mm)')
# Graph title
plt.title('Rainfall')
# Display the graph
plt.show()
"""
Output
"""
# Creating a line graph using matplotlib
"""
Before executing the program install matplotlib
open command prompt and type
pip install matplotlib
this will install all required packages
"""
# importing the required module
import matplotlib.pyplot as plt
# x axis values
x = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec']
# corresponding y axis values
y1 = [24.3, 25.3, 27.4, 29.6, 30.8, 30.3, 30, 29.2, 28.7, 27.3, 25.7, 24.6]
y2 = [23.9, 25.8, 28.1, 28.9, 27.5, 25.2, 24.5, 24.5, 25, 24.8, 23.9, 23.2]
# Setting the width and height of graph
f = plt.figure()
f.set_figwidth(12)
f.set_figheight(4)
# plotting the points
plt.plot(x, y1, 'g', label='Chennai', linewidth=2.5)
plt.plot(x, y2, 'r', label='Coimbatore', linewidth=2.5)
# naming the x axis
plt.xlabel('Month')
# naming the y axis
plt.ylabel('Temperature')
# display legend
plt.legend()
# giving a title to my graph
plt.title('Monthly Avarage Temperature')
# function to show the plot
plt.show()
"""
Output
"""
# Creating a simple triangle using matplotlib
"""
Before executing the program install matplotlib
open command prompt and type
pip install matplotlib
this will install all required packages
"""
# importing the required module
import matplotlib.pyplot as plt
# x axis values
x = [1,2,3,1]
# corresponding y axis values
y = [2,4,1,2]
# plotting the points
plt.plot(x, y)
# naming the x axis
plt.xlabel('x - axis')
# naming the y axis
plt.ylabel('y - axis')
# giving a title to my graph
plt.title('My first Triangle!')
# function to show the plot
plt.show()
Output:
# Number Patterns
# Squares and cubes of Numbers
Num_of_terms = int(input("Enter number of terms : "))
val = 1
print("Number Patterns : ")
print("Squares of Numbers : ", end="")
for i in range(1,Num_of_terms+1,1):
print(i*i, end=" ")
print("\nCubes of Numbers : ", end="")
for i in range(1,Num_of_terms+1,1):
print(i*i*i, end=" ")
# Number Patterns
# Odd Numbers
Num_of_terms = int(input("Enter number of terms : "))
val = 1
print("Number Patterns - Odd Numbers : ")
for i in range(0,Num_of_terms,1):
print(val, end=" ")
val+=2
# Number series
# Fibonacci series
print("Fibonacci series : ")
Num_of_terms = int(input("Enter number of terms : "))
f1 = -1
f2 = 1
for i in range(0,Num_of_terms,1):
term = f1+f2
print(term, end=" ")
f1 = f2
f2 = term
# Exchange the values of two variables
var1 = int(input("Enter value : "))
var2 = int(input("Enter value : "))
print("Original values : ")
print("Value 1= ",var1)
print("Value 2= ",var2)
#swapping the values
var1, var2 = var2, var1
print("Swapped values : ")
print("Value 1 = ",var1)
print("Value 2 = ",var2)
