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5.1.5 char
Syntax:
char ( ring_name )
Type:
- int
Purpose:
- returns the characteristic of the coefficient field of a ring.
Example:
| ring r=32003,(x,y),dp;
char(r);
==> 32003
ring s=0,(x,y),dp;
char(s);
==> 0
ring ra=(7,a),(x,y),dp;
minpoly=a^3+a+1;
char(ra);
==> 7
ring rp=(49,a),(x,y),dp;
char(rp);
==> 7
ring rr=real,x,dp;
char(rr);
==> 0
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See
charstr;
ring.
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