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Python Math: Calculate surface volume and area of a cylinder

Python Math: Exercise-5 with Solution

Write a Python program to calculate surface volume and area of a cylinder.
Note: A cylinder is one of the most basic curvilinear geometric shapes, the surface formed by the points at a fixed distance from a given straight line, the axis of the cylinder.

Sample Solution:-

Python Code:

pi=22/7
height = float(input('Height of cylinder: '))
radian = float(input('Radius of cylinder: '))
volume = pi * radian * radian * height
sur_area = ((2*pi*radian) * height) + ((pi*radian**2)*2)
print("Volume is: ", volume)
print("Surface Area is: ", sur_area)

Sample Output:

Height of cylinder: 4                                                                                         
Radius of cylinder: 6                                                                                         
Volume is:  452.57142857142856                                                                                
Surface Area is:  377.1428571428571  

Pictorial Presentation:

Python Math: Calculate surface volume and area of a cylinder

Flowchart:

Flowchart: Calculate surface volume and area of a cylinder

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Previous: Write a Python program to calculate the area of a parallelogram.
Next: Write a Python program to calculate surface volume and area of a sphere.

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Python: Tips of the Day

Memory Management:

getrefcount will show how many times an object is used in the memory. It's a fantastic tool that can be used for memory management in any program and it's very convenient too.

Getrefcount will calculate the object usage at a low level ByteCode so it can tend to be higher than expected. For instance when you print a value that value is actually processed multiple times in the background inside the print function itself and getrefcount also counts the instance when the value is called with getrefcount method itself. So, it's safe to say that the count will actually always be at least 1 time higher than expected.

Here is a code to show how many times alphanumeric characters are referenced in a random code:

import sys
x_val = 20
x_val += 1

y_val = "Heritage"

x = sys.getrefcount(x_val)
y = sys.getrefcount(y_val)

print(x, y, sep="\n")

Output:

10
4