For more detail explaantion , check the below link:
https://www.tutorialspoint.com/python/python_loop_control.htm

Python for beginners:
https://www.youtube.com/watch?v=egq7ZLqtbcI&list=PLNhFkFk6qEgIq3lcbmxWIBFjEcq4lwRyk

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Explore more about eval here:
https://docs.python.org/3/library/functions.html#eval

https://towardsdatascience.com/python-eval-built-in-function-601f87db191

To convert the string into a numerical value use the function
eval(string )

Test the following…

Number Data Type | Python | Castor Classes
https://www.youtube.com/watch?v=s96l6u2Blbo

Python for beginners:
https://www.youtube.com/watch?v=egq7ZLqtbcI&list=PLNhFkFk6qEgIq3lcbmxWIBFjEcq4lwRyk

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For more detail on math module , check the below link:
https://docs.python.org/3/library/math.html

Relationship between number of digits of a number and it's logarithm:
https://math.stackexchange.com/questions/1384917/relation-between-number-of-digits-of…

Topics discussed in this video:
1)How to create a string in Python
2)String Concatenation
3) Multiplication of a string with integer
4)How to use escape character in string

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Code is given in the comment section.

Stacks and Queues using List | Data Structures | Python | Castor Classes
https://www.youtube.com/watch?v=bMVBWseoJJY&t=248s

Problem Statement:
Evaluate the value of an arithmetic expression in Reverse Polish Notation.…

Data Mining in Agriculture (Springer Optimization and Its Applications Book 34) Kindle Edition
by Antonio Mucherino (Author), Petraq Papajorgji (Author), Panos M. Pardalos (Author) PDF

Code is given in the comment section.


Prerequisite:

Single Number | Practice Problem on List | Python | Castor Classes:
https://www.youtube.com/watch?v=mIQBloo8LF0

Single Number II | Practice Problem on List | Python | Castor Classes
https://www.yout…

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Python for beginners:
https://www.youtube.com/watch?v=egq7ZLqtbcI&list=PLNhFkFk6qEgIq3lcbmxWIBFjEcq4lwRyk

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Problem Statement:

In MATLAB, there is a very useful function called 'reshape', which can reshape a matrix into a new one with different size but keep its original data.

You're given a matrix represented by a two-dimensional array, and two positive integers…

Code is given in the comment section.

Prerequisite:
Stacks and Queues using List | Data Structures | Python | Castor Classes
https://www.youtube.com/watch?v=bMVBWseoJJY

Python for beginners:
https://www.youtube.com/watch?v=egq7ZLqtbcI&list=PLNhFkFk6qEg…

Code is given in the comment section.

Prerequisite:
Reverse First K elements of Queue using STACK | Python | Castor Classes
https://www.youtube.com/watch?v=gqIA2D0utiA&t=6s

Python for beginners:
https://www.youtube.com/watch?v=egq7ZLqtbcI&list=PLNhFkFk…