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PthRoot    --    Compute p-th root


Syntax 
PthRoot(X: RINGELEM): RINGELEM

Description
This function returns the p-th root of a polynomial over a finite field. If no p-th root exists then an error is signalled. p is the characteristic of the field.

Example 
/**/  use R ::= ZZ/(7)[x,y];
/**/  F := x^7-y^14+3;
/**/  PthRoot(F);
-y^2+x+3

See Also