Python : Convert Roman To Integer
Video 45: In this tutorial, we explored the conversion of Roman numerals to their corresponding numerical values, focusing on numerals up to a thousand. The symbols and their respective values considered in the script are as follows:
Symbol Value
I 1
V 5
X 10
L 50
C 100
D 500
M 1000
Roman numerals conventionally follow a pattern where larger symbols appear to the left of smaller ones, creating larger values.
Some examples include:
III equals 3.
IV equals 4.
IX equals 9.
LVIII translates to 50 + 5 + 3, resulting in 58.
MCMXCIV represents 1000 + (1000 - 100) + (100 - 10) + (5 - 1), summing up to 1994.
Whenever a smaller numeral appears before a larger one, it denotes subtraction from the larger numeral:
IV denotes -1 + 5, resulting in 4.
IX equals -1 + 10, resulting in 9.
Subtraction occurs in six specific instances:
I (1) can precede V (5) and X (10) to form 4 and 9.
X (10) can precede L (50) and C (100) to form 40 and 90.
C (100) can precede D (500) and M (1000) to form 400 and 900.
This methodical approach enables the accurate conversion of Roman numerals into their corresponding numerical values.
For comprehensive Python code and supplementary sample data, please refer to the GitHub file provided below.
code: https://github.com/jeganpillai/python...
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