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5.1.160 univariate
Syntax:
univariate ( poly_expression )
Type:
- int
Purpose:
- returns 0 for not univariate, -1 for a constant or the number of the variable
of the univariate polynomial.
Example:
| ring r=0,(x,y,z),dp;
univariate(x2+1);
==> 1
univariate(x2+y+1);
==> 0
univariate(1);
==> -1
univariate(var(2));
==> 2
var(univariate(z));
==> z
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See
leadexp;
var.
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