Lets you know the associativity property of a rule get/set
Warning
uCalc API Preview Release Notice:The uCalc engine has successfully transitioned to modern cross-platform environments.The next phase envolves some structural changes, performance optimizations, and API refinements.The API is subject to breaking changes prior to the stable release. Please evaluate the preview version thoroughly before production use.
[revisit]Lets you know the associativity property of a rule; true means it goes right to left; false means it's left to right (default)getter setter