







Base 5 
20130930 

From Zakir: Sir I wanna know something about base 5 number system
Why we use it and who use this ? and what is the purpose of it Answered by Robert Dawson. 





A bar over a Roman numeral 
20000621 

From Charles Fontaine: Is there any significance to the bar placed over some Roman numerals? Answered by Penny Nom. 





Number Systems 
19981007 

From Frans: What other number system are there besides the real number system and the complex number system? Interested adult thanks Answered by Penny Nom. 

