The Magic Encyclopedia index (r) 


index item with this background taken from the LEXICON
by Harvey Heinz and John R Hendricks
for purchasing details see: http://www.magicsquares.net/BookSale.htm 

Radix Base 
the digit range for numbers (mathematical term) 

N = n_{n1}..n_{0} = _{i=0}∑^{n1} n_{i} R^{i}  
binary ternary octal decimal hexadecimal ...... 
numbers in radix 2 [0,1] (computer sciences) radix 3 [0,1,2] radix 8 [0..7] radix 10 [0..9] (regularly teached) radix 16 [0..9,A..F] (computer sciences) N = decimal.decimal.decimal 

Ratio 
the fraction of magic items lines in all items the "items" needs to be specified when appropriate 

see also 
ragonal Ratio Magic Ratio Qualification 

Reflection  one of the basic isomorphisms on a hypercube  
Regular (number range) Normal Pure 
Use of the normal number range in figures (no double appearing numbers) 

Regular (structure)  The regular theory is being used  
see also 
Irregular (structure) Panmagic squares 

Representation  method of showing ahy object  
Remainder  the magic constant in a subtraction magic object  
see also  Qualifications  
Reversable magic square  Special kind of magic square  
Rotation  one of the basic (though composite) isomorphisms on a hypercube 