The input data types determine modes for their internal representation and for operations over them. One distinguishes four different input data types: (commutative) polynomials, modules, differential and difference equations. Their principal distinction lies in the monomial representation. Commutative polynomials may have coefficients of different nature: integer/rational numbers or multi-parametric polynomials/rational functions. The input data can be represented by any admissible expressions, including fractions. A fraction must have in the denominator the same data type as in the numerator. Then, after reducing to a common denominator the last is casted out. The type of a system is given by the class SystemType.
type, module=None, rightPart=None) |
type
:
Value of type |
System type |
---|---|
"Polynomial" | Polynomial system 3.1 |
"DifferentialEquation" | System of linear differential equations 3.3 |
"FiniteDifferenceScheme" | System of linear difference equations 3.4 |
module
:
rightPart
: The class SystemType has the following attributes: