Static Groups in Dynamic Computation Environment

A computing system, comprising:

• a user interface having a display and an input device;
• and
• a processor coupled to the user interface and to memory, wherein the processor is configured to execute program instructions stored in the memory to produce a dynamic computational environment, wherein, the program instructions are configured to:
• create, in response to user input, a plurality of mathematical expressions in a dynamic computational environment, wherein a change made to any one of the plurality of mathematical expressions will be propagated to all of the mathematical expressions, such that each of the plurality of mathematical expressions affected by the change is updated;
• select, in response to user input, one or more of the plurality of mathematical expressions to form a selected set of inactivated mathematical expressions;
• and
• block propagation of changes into the selected set of inactivated mathematical expressions.

A computer readable medium comprising executable instruction to cause a computer system to perform a method comprising:

• creating, in response to user input, a plurality of mathematical expressions in a dynamic computational environment, wherein a change made to any one of the plurality of mathematical expressions will be propagated to all of the mathematical expressions, such that each of the plurality of mathematical expressions affected by the change is updated;
• selecting, in response to user input, one or more of the plurality of mathematical expressions to form a selected set of inactivated mathematical expressions;
• and
• blocking propagation of changes into the selected set of mathematical expressions.