Vikram Chiluka

In the previous article, we have discussed Python Program to Calculate EMI

isalnum() Method:

The isalnum() Method is a String Class pre-defined method that can be used on any String Object. It returns Boolean Values based on the following criteria.

• If all of the characters in the given string are Alphanumerical, it returns True.
• If any of the characters in the given string are not Alphanumerical, this function returns False.

For Example:

Given string = “Hellobtechgeeks123”

Output: returns true since all the characters are alphabets and numbers.

Given string = “good morning@ #btechgeeks12345”

Output: returns False since all the given String contains some special symbols like #,@, and spaces.

Examples:

Example1:

Input:

Given string = "Hellobtechgeeks123"

Output:

The Given string { Hellobtechgeeks123 } is Alpha Numeric

Example 2:

Input:

Given string = "good morning@ #btechgeeks12345"

Output:

The Given string { good morning@ #btechgeeks12345 } is not Alpha Numeric

Program to Check if all Characters of String are Alphanumeric or Not

Below are the ways to Check if all Characters of String are Alphanumeric or Not.

• Using isalnum() Method (Static input)
• Using isalnum() Method (User input)

Method #1: Using isalnum() Method (Static input)

Approach:

• Give the string as static input and store it in a variable.
• Check whether the Given string is alphanumeric using the built-in alnum() method and store it in another variable.
• Check whether the above result is True or not using the if conditional statement.
• If it is True, Print the given string is alphanumeric.
• If it is False, Print the given string that is not alphanumeric.
• The Exit of the program.

Below is the implementation:

# Give the string as static input and store it in a variable.
gvn_strng = "Hellobtechgeeks123"
# Check whether the Given string is alphanumeric using built-in alnum() method
# and store it in another variable.
Bol_val = gvn_strng.isalnum()
# Check whether the above result is True or not using the if conditional statement.
if(Bol_val == True):
 # If it is True, Print the given string is  alphanumeric.
    print("The Given string {", gvn_strng, "} is Alpha Numeric")
else:
  # If it is False, Print the given string is not alphanumeric.
    print("The Given string {", gvn_strng, "} is not Alpha Numeric")

Output:

The Given string { Hellobtechgeeks123 } is Alpha Numeric

Method #2: Using isalnum() Method (User input)

Approach:

• Give the string as user input using the input() function and store it in a variable.
• Check whether the Given string is alphanumeric using the built-in alnum() method and store it in another variable.
• Check whether the above result is True or not using the if conditional statement.
• If it is True, Print the given string is alphanumeric.
• If it is False, Print the given string that is not alphanumeric.
• The Exit of the program.

Below is the implementation:

# Give the string as user input using the input()function and store it in a variable.
gvn_strng = input('Enter some random string = ')
# Check whether the Given string is alphanumeric using built-in alnum() method
# and store it in another variable.
Bol_val = gvn_strng.isalnum()
# Check whether the above result is True or not using the if conditional statement.
if(Bol_val == True):
 # If it is True, Print the given string is  alphanumeric.
    print("The Given string {", gvn_strng, "} is Alpha Numeric")
else:
  # If it is False, Print the given string is not alphanumeric.
    print("The Given string {", gvn_strng, "} is not Alpha Numeric")

Output:

Enter some random string = good morning @btechgeeks #123456
The Given string { good morning @btechgeeks #123456 } is not Alpha Numeric

Explore more instances related to python concepts from Python Programming Examples Guide and get promoted from beginner to professional programmer level in Python Programming Language.

• Python Program for Comma-separated String to Tuple
• Python Program to get the Last Word from a String
• Python Program to Remove the First Occurrence of Character in a String
• Program to Print Even Length Words in a String

In the previous article, we have discussed Python Program to Calculate BMI
Lapindrome:

When strings are divided into halves, if the partitioned strings have the same frequency (i.e. character count) on both partitions, those strings are referred to as lapindromes. If there are an odd number of characters, ignore the middle character.

Example:

Given String = pqrsprq

When the given string is divided into two halves we get pqr and prq (ignore middle character). Both these strings have the same characters. Hence the given String is Lapindrome.

Examples:

Example 1:

Input:

Given String = pqrsprq

Output:

Yes,the above Given string is a lapindrome

Example 2:

Input:

Given String = btechgeeks

Output:

No, the above given string is not a lapindrome

Program to Check if a String is lapindrome or Not

Below are the ways to check if the given  String is lapindrome or Not

• Using Slicing Operator (Static Input)
• Using Slicing Operator (User Input)

Method #1: Using Slicing Operator (Static Input)

Approach:

• Give the string as static input and store it in a variable.
• Initialize two empty stings(S1, S2).
• If the length of the Given String is even, then divide it into two equal halves using the slicing operator and append it to the above two declared empty strings.
• Else if the length of the Given String is odd, then divide it into two equal halves using the slicing operator(Ignore middle character ) and append it to the above two declared empty strings.
• Convert the split strings S1, S2 into two lists respectively using the built-in list() function and store them in another variable.
• Sort the above two lists in ascending order using the sort() function and store them in another variable.
• Convert the above two lists into two different strings respectively and store them in two variables.
• If both the given split strings are equal, print “Lapindrome ” using the if conditional statement.
• print “Not Lapindrome”, if both the given split strings are not equal.
• The Exit of the program.

Below is the implementation:

# Give the string as static input and store it in a variable.
gvn_strng = "pqrsprq"
# Initialize two empty stings
fst_strng, secnd_strng = '', ''
# If the length of the Given String is even ,then divide it into two equal halves
# using slicing operator and append it to the above two declared empty strings.
if(len(gvn_strng) % 2 == 0):
    fst_strng = gvn_strng[:len(gvn_strng)//2]
    secnd_strng = gvn_strng[len(gvn_strng)//2:]
# Else if the length of the Given String is odd ,then divide it into two equal halves
# using slicing operator(Ignore middle character ) and append it to the above two declared empty strings.
else:
    fst_strng = gvn_strng[:len(gvn_strng)//2]
    secnd_strng = gvn_strng[len(gvn_strng)//2+1:]
# Convert the split strings S1, S2 into two lists respectively using built-in list()
# function and store them in another variables.
lst_1 = list(fst_strng)
lst_2 = list(secnd_strng)
# Sort the above two lists in ascending order and store them in another variables .
lst_1.sort()
lst_2.sort()
# Convert the above two lists into two different strings respectively and
# store them in another variables .
fst_strng = str(lst_1)
secnd_strng = str(lst_2)
# If both the given split strings are equal ,print "Lapindrome " using if condition.
if(fst_strng == secnd_strng):
    print('Yes,the above Given string is a lapindrome')
# print "Not Lapindrome", if both the given split strings  are not equal .
else:
    print('No, the above given string is not a lapindrome')

Output:

Yes,the above Given string is a lapindrome

Method #2: Using Slicing Operator (User Input)

Approach:

• Give the string as User input using the input() function and store it in a variable.
• Initialize two empty stings(S1, S2).
• If the length of the Given String is even, then divide it into two equal halves using the slicing operator and append it to the above two declared empty strings.
• Else if the length of the Given String is odd, then divide it into two equal halves using the slicing operator(Ignore middle character ) and append it to the above two declared empty strings.
• Convert the split strings S1, S2 into two lists respectively using the built-in list() function and store them in another variable.
• Sort the above two lists in ascending order using the sort() function and store them in another variable.
• Convert the above two lists into two different strings respectively and store them in two variables.
• If both the given split strings are equal, print “Lapindrome ” using the if condition.
• print “Not Lapindrome”, if both the given split strings are not equal.
• The exit of the program.

Below is the implementation:

# Give the string as User input and store it in a variable.
gvn_strng = input("Enter Some Random String = ")
# Initialize two empty stings
fst_strng, secnd_strng = '', ''
# If the length of the Given String is even ,then divide it into two equal halves
# using slicing operator and append it to the above two declared empty strings.
if(len(gvn_strng) % 2 == 0):
    fst_strng = gvn_strng[:len(gvn_strng)//2]
    secnd_strng = gvn_strng[len(gvn_strng)//2:]
# Else if the length of the Given String is odd ,then divide it into two equal halves
# using slicing operator(Ignore middle character ) and append it to the above two declared empty strings.
else:
    fst_strng = gvn_strng[:len(gvn_strng)//2]
    secnd_strng = gvn_strng[len(gvn_strng)//2+1:]
# Convert the split strings S1, S2 into two lists respectively using built-in list()
# function and store them in another variables.
lst_1 = list(fst_strng)
lst_2 = list(secnd_strng)
# Sort the above two lists in ascending order and store them in another variables .
lst_1.sort()
lst_2.sort()
# Convert the above two lists into two different strings respectively and
# store them in another variables .
fst_strng = str(lst_1)
secnd_strng = str(lst_2)
# If both the given split strings are equal ,print "Lapindrome " using if condition.
if(fst_strng == secnd_strng):
    print('Yes, the above Given string is a lapindrome')
# print "Not Lapindrome", if both the given split strings  are not equal .
else:
    print('No, the above given string is not a lapindrome')

Output:

Enter Some Random String = btechgeeks
No, the above given string is not a lapindrome

Explore more instances related to python concepts from Python Programming Examples Guide and get promoted from beginner to professional programmer level in Python Programming Language.

• Python Program to Determine Whether one String is a Rotation of Another
• Python Program Enter ‘*’ Between two Identical Characters in a String
• Python Program to Add Trailing Zeros to String
• Python Program to Divide a String in ‘N’ Equal Parts.

In the previous article, we have discussed Python Program to Calculate the Discriminant Value
Pronic Number:

A pronic number is the product of two consecutive integers, i.e. a number of the form n(n + 1).

Pronic numbers are also referred to as oblong numbers or heteromecic numbers.

Pronic numbers include 0, 2, 6, 12, 20, 30, 42, 56, 72, 90, 110, 132, 156, 182, 210, 240, 272, 306, 342, 380, 420, and 462 etc.

Examples:

Example 1:

Input:

Given number = 240

Output: 

The given number{ 240 } is a pronic number

Example 2:

Input:

Given number = 15

Output: 

The given number{ 15 } is Not a pronic number

Program to Check Pronic Number or Not

Below are the ways to check the given number is a pronic number or not

• Using For loop(Static Input)
• Using For loop(User Input)

Method #1: Using For Loop (Static Input)

Approach:

• Give the number as static input and store it in a variable.
• Take a variable say ‘count’ and initialize its value with ‘0’.
• Loop from 0 to above-given number using for loop.
• Inside the loop, check if the product of the iterator value and iterator+1 value (consecutive integers) is equal to the given number using the if conditional statement.
• If the statement is true, then increment the value of count (i.e. 1), give the break condition, and come out of the loop.
• Check if the value of count is equal to ‘1’ using the if conditional statement.
• If the statement is true, then print “The given number is pronic number”.
• Else print “The given number is Not a pronic number”.
• The Exit of the program.

Below is the implementation:

# Give the number as static input and store it in a variable.
numb = 156
# Take a variable say 'count' and initialize its value with '0'.
count = 0
# Loop from 0 to above-given number using for loop. 
for itr in range(numb):
    # Inside the loop, check if the product of the iterator value and iterator+1 value
    # (consecutive integers) is equal to the given number using the if conditional statement.
    if itr * (itr + 1) == numb:
        # If the statement is true, then increment the value of count (i.e. 1),
        # give the break condition and come out of the loop.
        count = 1
        break
# Check if the value of count is equal to '1' using the if conditional statement.
if count == 1:
  # If the statement is true, then print "The given number is a pronic number".
    print("The given number{",numb,"} is a pronic number")
# Else print "The given number is Not a pronic number".
else:
    print("The given number{",numb,"} is Not a pronic number")

Output: 

The given number{ 156 } is a pronic number

Method #2: Using For Loop (User Input)

Approach:

• Give the number as user input using the int(input()) function and store it in a variable.
• Take a variable say ‘count’ and initialize its value with ‘0’.
• Loop from 0 to above-given number using for loop.
• Inside the loop, check if the product of the iterator value and iterator+1 value (consecutive integers) is equal to the given number using the if conditional statement.
• If the statement is true, then increment the value of count (i.e. 1), give the break condition, and come out of the loop.
• Check if the value of count is equal to ‘1’ using the if conditional statement.
• If the statement is true, then print “The given number is pronic number”.
• Else print “The given number is Not a pronic number”.
• The Exit of the program.

Below is the implementation:

# Give the number as user input using int(input()) function and store it in a variable.
numb = int(input("Enter some random number = "))
# Take a variable say 'count' and initialize its value with '0'.
count = 0
# Loop from 0 to above-given number using for loop. 
for itr in range(numb):
    # Inside the loop, check if the product of the iterator value and iterator+1 value
    # (consecutive integers) is equal to the given number using the if conditional statement.
    if itr * (itr + 1) == numb:
        # If the statement is true, then increment the value of count (i.e. 1),
        # give the break condition and come out of the loop.
        count = 1
        break
# Check if the value of count is equal to '1' using the if conditional statement.
if count == 1:
  # If the statement is true, then print "The given number is a pronic number".
    print("The given number{",numb,"} is a pronic number")
# Else print "The given number is Not a pronic number".
else:
    print("The given number{",numb,"} is Not a pronic number")

Output: 

Enter some random number = 90
The given number{ 90 } is a pronic number

Explore more instances related to python concepts from Python Programming Examples Guide and get promoted from beginner to professional programmer level in Python Programming Language.

• Python Program to Check Automorphic Number or Not
• Python Program to Check Buzz Number or Not
• Python Program to Check a number is Narcissistic Number or Not
• Program for Neon Number

 

In the previous article, we have discussed Python Program to Check Pronic Number or Not
Cylinder :

A cylinder is a closed geometrical solid shape with two parallel bases joined by a curved surface.
The bases are circular in shape.

The following is the formula for calculating

1. The area of a cylinder = 2πr(r+h)
2. The volume of a cylinder = πr²h

where  r = radius of the base circle

h = height of the curved surface

Given the radius and height of the cylinder, and the task is to calculate the surface area and volume of the given cylinder.

Examples:

Example 1:

Input: 

Given radius = 2.5
Given height = 3.5

Output:

The surface area of a given cylinder = 137.44467859455347
The volume of a given cylinder = 68.72233929727673

Example 2:

Input: 

Given radius = 7
Given height = 1.5

Output:

The surface area of a given cylinder = 461.81412007769956
The volume of a given cylinder = 230.90706003884978

Program to Calculate Surface Area and Volume of a Cylinder

Below are the ways to calculate the surface area and volume of the given cylinder.

• Using Mathematical Formula (Static Input)
• Using Mathematical Formula (User Input)

Method #1: Using Mathematical Formula (Static Input)

Approach:

• Import math module using the import keyword.
• Give the radius as static input and store it in a variable.
• Give the height as static input and store it in another variable.
• Calculate the surface area of the given cylinder using the above given mathematical formula, math.pi () method and store it in another variable.
• Calculate the volume of the given cylinder using the above given mathematical formula, math.pi () method and store it in another variable.
• Print the surface area of the given cylinder.
• Print the volume of the given cylinder.
• The Exit of the program.

Below is the implementation:

# Import math module using the import keyword.
import math
# Give the radius as static input and store it in a variable.
gvn_radius = 4
# Give the height as static input and store it in another variable.
gvn_heigt = 7
# Calculate the surface area of the given cylinder using the above given mathematical
# formula, math.pi () method and store it in another variable.
surfc_area = 2*math.pi*pow(gvn_radius, 2)*gvn_heigt
# Calculate the volume of the given cylinder using the above given mathematical formula,
# math.pi () method and store it in another variable.
vol = math.pi*pow(gvn_radius, 2)*gvn_heigt
# Print the surface area of the given cylinder.
print("The surface area of a given cylinder =", surfc_area)
# Print the volume of the given cylinder.
print("The volume of a given cylinder =", vol)

Output:

The surface area of a given cylinder = 703.7167544041137
The volume of a given cylinder = 351.85837720205683

Method #2: Using Mathematical Formula (User Input)

Approach:

• Import math module using the import keyword.
• Give the radius as user input using the float(input()) function and store it in a variable.
• Give the height as user input using the float(input()) function and store it in another variable.
• Calculate the surface area of the given cylinder using the above given mathematical formula, math.pi () method and store it in another variable.
• Calculate the volume of the given cylinder using the above given mathematical formula, math.pi () method and store it in another variable.
• Print the surface area of the given cylinder.
• Print the volume of the given cylinder.
• The Exit of the program.

Below is the implementation:

# Import math module using the import keyword.
import math
# Give the radius as user input using the float(input())function and store it in a variable.
gvn_radius = float(input("Enter some random number = "))
# Give the height as user input using the float(input())function store it in another variable.
gvn_heigt = float(input("Enter some random number = "))
# Calculate the surface area of the given cylinder using the above given mathematical
# formula, math.pi () method and store it in another variable.
surfc_area = 2*math.pi*pow(gvn_radius, 2)*gvn_heigt
# Calculate the volume of the given cylinder using the above given mathematical formula,
# math.pi () method and store it in another variable.
vol = math.pi*pow(gvn_radius, 2)*gvn_heigt
# Print the surface area of the given cylinder.
print("The surface area of a given cylinder =", surfc_area)
# Print the volume of the given cylinder.
print("The volume of a given cylinder =", vol)

Output:

Enter some random number = 5.5
Enter some random number = 8
The surface area of a given cylinder = 1520.53084433746
The volume of a given cylinder = 760.26542216873

Explore more instances related to python concepts from Python Programming Examples Guide and get promoted from beginner to professional programmer level in Python Programming Language.

• Python Program to Compute the Area and Perimeter of Pentagon
• Python Program to Find Sum of Geometric Progression Series
• Python Program to Find Isosceles Triangle Area
• Python Program to Find out the Arc Length of an Angle

 

In the previous article, we have discussed Python Program to Calculate Surface Area and Volume of a Cylinder
Arc Length :

The length of an arc is defined as the length of a circle’s circumference.

The arc length formula is as follows:

Arc length = (π*d) * (A/360)

where ‘d ‘ is the diameter of the circle.

‘A’ is the angle.

Given the diameter and angle of the circle, and the task is to find the arc length of the given angle.

Examples:

Example 1:

Input:

Given Diameter  = 10
Given Angle = 100

Output: 

The arc length of the given angle = 8.727

Example 2:

Input:

Given Diameter = 15
Given Angle =  450

Output: 

The above Entered Angle is Invalid

Program to Find out the Arc Length of an Angle

Below are the ways to find the arc length of the given angle.

• Using Mathematical Formula (Static Input)
• Using Mathematical Formula (User Input)

Method #1: Using Mathematical Formula (Static Input)

Approach:

• Import math module using the import keyword.
• Give the diameter of the circle as static input and store it in a variable.
• Give the angle as static input and store it in another variable.
• Check if the given angle is greater than or equal to 360 using the if conditional statement.
• If the statement is true, then print “The above-Entered Angle is Invalid”.
• Else calculate the Arc length of the given angle using the above mathematical formula, math. pi () method and store it in another variable.
• Print the arc length of the given angle.
• The Exit of the program.

Below is the implementation:

# Import math module using the import keyword.
import math
# Give the diameter of the circle as static input and store it in a variable.
gvn_diametr = 10
# Give the angle as static input and store it in another variable.
gvn_Angle = 100
# Check if the given angle is greater than or equal to 360 using if conditional statement.
if gvn_Angle >= 360:
  # If the statement is true, then print "The above Entered Angle is Invalid".
    print("The above Entered Angle is Invalid")
else:
    # Else Calculate the Arc length of the given angle using the above mathematical formula,
    # math.pi() method and store it in another variable.
    Arc_len = (math.pi*gvn_diametr) * (gvn_Angle/360)
# Print the arc length of the given angle.
    print("The arc length of the given angle = %.3f" % Arc_len)

Output: 

The arc length of the given angle = 8.727

Method #2: Using Mathematical Formula (User Input)

Approach:

• Import math module using the import keyword.
• Give the diameter of the circle as user input using the float(input()) function and store it in a variable.
• Give the angle as user input using the float(input()) function and store it in another variable.
• Check if the given angle is greater than or equal to 360 using the if conditional statement.
• If the statement is true, then print “The above-Entered Angle is Invalid”.
• Else Calculate the Arc length of the given angle using the above mathematical formula, math.pi () method and store it in another variable.
• Print the arc length of the given angle.
• The Exit of the program.

Below is the implementation:

# Import math module using the import keyword.
import math
# Give the diameter of the circle as user input using the float(input()) function and
# store it in a variable.
gvn_diametr = float(input("Enter some random number = "))
# Give the angle as user input using the float(input()) function and
# store it in another variable.
gvn_Angle = float(input("Enter some random number = "))
# Check if the given angle is greater than or equal to 360 using if conditional statement.
if gvn_Angle >= 360:
  # If the statement is true, then print "The above Entered Angle is Invalid".
    print("The above Entered Angle is Invalid")
else:
# Else Calculate the Arc length of the given angle using the above mathematical formula,
# math.pi() method and store it in another variable.
    Arc_len = (math.pi*gvn_diametr) * (gvn_Angle/360)
# Print the arc length of the given angle.
    print("The arc length of the given angle = %.3f" % Arc_len)

Output: 

Enter some random number = 15
Enter some random number = 90
The arc length of the given angle = 11.781

Explore more instances related to python concepts from Python Programming Examples Guide and get promoted from beginner to professional programmer level in Python Programming Language.

• Python Program to Calculate GST
• Python Program to Calculate the Area of a Trapezoid
• Python Program to Calculate the Value of nPr
• Program to Calculate Seed of a Number

 

In the previous article, we have discussed Python Program to Check Sunny Number
Trapezoid

A trapezoid is a four-sided geometrical figure with two sides that are parallel to each other. the sides that are parallel to each other are referred to as the “base” The other sides are referred to as “legs” (which may or may not be equal).

The formula for calculating the area of a trapezoid = (a+b)*h/2

where a, b = base of the trapezoid

h = denotes the distance between two parallel lines.

Given the base_1, base_2, and height of the trapezoid, and the task is to calculate the area of the given trapezoid.

Examples:

Example 1:

Input: 

Given first base = 6
Given second base = 2
Given height = 1

Output:

The Area of the given Trapezoid =  4.0

Example 2:

Input: 

Given first base =  10
Given second base = 9
Given height = 8.5

Output:

The Area of the given Trapezoid =  80.75

Program to Calculate the Area of a Trapezoid

Below are the ways to calculate the area of the given trapezoid.

• Using Mathematical Formula (Static Input)
• Using Mathematical Formula (User Input)

Method #1: Using Mathematical Formula (Static Input)

Approach:

• Give the first base as static input and store it in a variable.
• Give the second base as static input and store it in another variable.
• Give the height of the given trapezoid as static input and store it in another variable.
• Calculate the area of the given trapezoid using the above given mathematical formula and store it in another variable.
• Print the area of the given trapezoid.
• The Exit of the program.

Below is the implementation:

# Give the first base as static input and store it in a variable.
fst_base = 2
# Give the second base as static input and store it in another variable.
secnd_base = 4
# Give the height of the given trapezoid as static input and store it in another variable
gvn_Heigt = 1.5
# Calculate the area of the given trapezoid using the above given mathematical formula
# and store it in another variable.
trapezod_area = 0.5 * (fst_base + secnd_base) * gvn_Heigt
print("The Area of the given Trapezoid = ", trapezod_area)

Output:

The Area of the given Trapezoid =  4.5

Method #2: Using Mathematical Formula (User Input)

Approach:

• Give the first base as user input using the float(input()) function and store it in a variable.
• Give the second base as user input using the float(input()) function and store it in another variable.
• Give the height of the given trapezoid as user input using the float(input()) function and store it in another variable.
• Calculate the area of the given trapezoid using the above given mathematical formula and store it in another variable.
• Print the area of the given trapezoid.
• The Exit of the program.

Below is the implementation:

# Give the first base as user input using the float(input()) function and
# store it in a variable.
fst_base = float(input("Enter some random number = "))
# Give the second base as user input using the float(input()) function and
# store it in another variable.
secnd_base = float(input("Enter some random number = "))
# Give the height of the given trapezoid as user input using the float(input()) function
# and store it in another variable.
gvn_Heigt = float(input("Enter some random number = "))
# Calculate the area of the given trapezoid using the above given mathematical formula
# and store it in another variable.
trapezod_area = 0.5 * (fst_base + secnd_base) * gvn_Heigt
print("The Area of the given Trapezoid = ", trapezod_area)

Output:

Enter some random number = 3
Enter some random number = 4
Enter some random number = 5
The Area of the given Trapezoid = 17.5

Explore more instances related to python concepts from Python Programming Examples Guide and get promoted from beginner to professional programmer level in Python Programming Language.

• Python Program to Calculate the Value of nPr
• Program to Calculate Seed of a Number
• Python Program to Calculate Area of any Triangle using its Coordinates
• Python Program to Find the Type of Triangle with Given Sides