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IsIndet

checks argument is an indetermiante

Syntax

IsIndet(X: RINGELEM): BOOL

Description

This function tests whether X is an indeterminate. If so, it returns true ; otherwise it returns false . An error is signalled if X is not a RINGELEM or if RingOf(X) is not a polynomial ring.

Example

/**/ Use QQ[x,y,z]; /**/ IsIndet(x); true /**/ IsIndet(x-1); false