The objective is to demonstrate big integer arithmetic, such as multiplication, addition, subtraction, etc. Other utilities includes comparison of values and printing big integer values (given as integer array) as string.
main executing reference usages: usage_bigIntegerOperations.m
Sample run:
[Multiplication]:

3356846207105439564587992911895976292762589455707316583464831725207842 x 9794055690126173992377489963508068741579673734383766360427036604610424 = 32877138695579495485251882311435695545653783760411939807396746956744701303101530714509467933518447434648520155083949079304274482876839745008

[Addition]:

3356846207105439564587992911895976292762589455707316583464831725207842 + 9794055690126173992377489963508068741579673734383766360427036604610424 = 13150901897231613556965482875404045034342263190091082943891868329818266

[Subtraction]:

3356846207105439564587992911895976292762589455707316583464831725207842 - 9794055690126173992377489963508068741579673734383766360427036604610424 = -6437209483020734427789497051612092448817084278676449776962204879402582

* Caveat:
1. For reference only.

If the illustrative demo has more elegant presentation, please do not hesitate to suggest and send feedback to the author.
Email: promethevx@yahoo.com.

Thank you.

Regards,
Michael Chan JT