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characteristic

the characteristic of a ring

Syntax
characteristic(R: RING): INT

Description
This function returns the characteristic of the current ring, in the first case, or of the ring R, in the second.

Example
/**/   use R ::= ZZ/(3)[t];
/**/   S ::= QQ[x,y];
/**/   characteristic(CurrentRing);
3

/**/  characteristic(S);
0

See Also