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Author: sandhyac0203

Fundamentals of Python Programming.py

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+
+# coding: utf-8
+
+# 
+# ## Fundamentals of Programming
+
+# ### 1. Identifiers
+# #### 1.2 Data - Data Containers - Data Types
+# 
+
+# x is a name of a variable. x is an identifier
+
+# In[2]:
+
+
+x = 3
+print ("x is a variable. It is an identifier. Its value is: ",x,"\n")
+print("Data Type of x:", type(x),'\n')
+
+
+# stdName is a name of a variable that represents the name of a student.
+# stdName is an identifier
+
+# In[3]:
+
+
+stdName= "John Smith"
+print ("stdName is a variable. It is an identifier. Its value is: ",stdName,"\n")
+print("Data Type of stdName:", type(stdName),'\n')
+
+
+# From the above, the value of x is 3 that means "x now refers to the integer 3".
+# 
+# The value of stdName is John Smith means " stdName refers to string John Smith
+
+# When Assignment manipulates references
+
+# In[5]:
+
+
+y = x
+
+print(y)
+
+
+# ### Identity Operators
+# 
+# In Python, identity operators are used to check if the operands are identical - they refer to the same object
+# 
+
+# In[6]:
+
+
+x = 5
+y = 5
+
+isTrue = "x is y"
+isFalse= "x is not y"
+
+if (x is y):
+    print(isTrue)
+else:
+    print (isFalse)
+    
+    
+
+
+# In[7]:
+
+
+x = 5
+y = 8
+
+isTrue = "x is y"
+isFalse= "x is not y"
+
+if (x is y):
+    print(isTrue)
+else:
+    print (isFalse)
+    
+
+
+# In[8]:
+
+
+x = 5
+y = 8
+
+isTrue = "x is not y"
+isFalse= "x is y"
+
+if (x is y):
+    print(isTrue)
+else:
+    print (isFalse)
+    
+
+
+# ### Membership Operators
+# They are used to test if a value is found in sequence or not
+
+# In[9]:
+
+
+x = 'Hello World'
+if ('H' in x):
+    print ("H in x")
+else:
+    print ("H not in x")
+
+
+# In[10]:
+
+
+aList = [1,2,3,4,5]
+if(8 not in aList):
+    print("8 not in aList")
+else:
+    print("8 in aList")
+    
+
+
+# ### Calculate Diameter and the circumference of a circle
+
+# In[1]:
+
+
+pi=3.14159
+radius=float(input("Enter radius: "))
+unit=input("Enter units: ")
+diameter= 2*radius
+circumference=diameter * pi
+print("Diameter: ",diameter,unit)
+print("Circumference: ",circumference,unit)
+
+    
+
+
+# ### Comments
+# In Python, comments begin with a hash mark, a white space character and continue to the end of line
+
+# In[12]:
+
+
+# This is a comment
+
+x = 3
+x
+
+
+# In[13]:
+
+
+# Print "Hello World" to console
+print ("Hello, World!")
+
+
+# In[14]:
+
+
+# Inline Comment
+x = 3 # This is an inline comment
+x
+
+
+# In[15]:
+
+
+# This is a comment of multiple lines, also known as block comment
+# Add another line of comment
+# Add another line
+# And another line
+
+x = 3
+x
+