Equation Solving

rascal-0.40.17

Synopsis

Solving equations by fixed-point iteration.

Description

Many problems can be solved by forms of constraint solving. This is a declarative way of programming: Specify the constraints that a problem solution should satisfy and how potential solutions can be generated. The actual solution (if any) is found by enumerating solutions and testing their compliance with the constraints.

Rascal provides a Solve statement that helps writing constraint solvers.

Examples

A typical example is data flow analysis where the propagation of values through a program can be described by a set of equations. Their solution can be found with the solve statement.

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