Present values clearly with format
format(value) converts a value into a readable textual representation. It is useful for reports, labels, and calculator output where raw numeric precision or matrix syntax is not the desired presentation.
Formatting versus calculation
Format changes how a value is displayed, not its mathematical meaning. Perform arithmetic with the original value using add or multiply, then format at the boundary where text is needed. Use round when the numeric value itself should be rounded before display.
Practical notes
Formatted output may no longer behave as a number in later expressions. Keep units and significant figures explicit, especially for very large or small values. print can help inspect values during a workflow, while typeOf confirms whether a result is still numeric.