BALANCED\_MOD _ _ _ _ _ _ _ _ _ _ _ _ switch

modularnumbers are normally produced in the range [0,. ..<n>), where <n> is the current modulus. With balanced_mod on, the range [-<n>/2,<n>/2], or more precisely [-floor((<n>-1)/2), ceiling((<n>-1)/2)], is used instead.

examples:

setmod 7; 

  1 


on modular; 

4; 

  4 


on balanced_mod; 

4; 

  -3