CoCoA:Characteristic
From ApCoCoAWiki
Characteristic
the characteristic of a ring
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 ::= Z/(3)[t]; S ::= Q[x,y]; Characteristic(); -- characteristic of the current ring, R 3 ------------------------------- Characteristic(S); 0 -------------------------------
Syntax
Characteristic():INT Characteristic(R:RING):INT
<type>ring</type>
