v0.6.2

In this latest release, the primary focus has been on refining the order of variable calculation within cyclic relationships.

The key improvements in this version:

1. Addition of the cycle_order attribute - we've introduced the cycle_order attribute within the Variable class. This attribute contains an integer that defines the calculation order within groups of variables forming cycles.

2. Prevention of bidirectional recursion - bidirectional recursion, where a variable calls both t-... and t+... in its definition, is now explicitly disallowed in the models. This restriction helps maintain clear and manageable relationships between variables.

3. Error handling for negative index calls - the package raises errors for calls with negative indexes. When a model variable is invoked for t<0, the package prompts an error, preventing potential inconsistencies in computations.