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type/specified_rootof - check for a RootOf data structure that is a specific root of an expression
Calling Sequence
type(expr, specified_rootof)
Parameters
expr
-
any expression
Description
The type(expr, specified_rootof) function returns true if expr is a specific root of an expression that uses a RootOf data structure. Otherwise, false is returned.
This function recognizes two forms of roots.
1. RootOf(expr, index = n) where expr is an algebraic expression, and n is a positive integer
Specifies the roots of a rational polynomial.
2. RootOf(expr, c) where expr is an algebraic expression, and c is a constant
Specifies the closest root to the point c.
If extra arguments are included in the call to type(expr, specified_rootof), they are ignored.
Examples
See Also
RootOf, type, type/abstract_rootof, type/algext, type/algnum, type/RootOf
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