Theoretically, the amounts will roughly approximate fair value. Exact mathematical perfection can only approximate real objects. Thus, these estimates approximate actual lengths. A ROFR is an option to enter a transaction on exact or approximate transaction terms. Any estimates obtained from the sample only approximate the population value. For example, it may approximate the exact solution. RMQs are used as a tool for many tasks in exact and approximate string matching. The remaining transliterations correspond to the IPA symbol of their approximate value. Distances are approximate and trail conditions are variable. It can therefore approximate the geometric distribution arbitrarily well. The intervals of 12-TET closely approximate some intervals in just intonation. Using these dice in various ways, games can closely approximate a variety of probability distributions. Words like "approximate", "approximately" and "approximation" are used especially in technical or scientific contexts. Complete datasets providing a similar approximate geographic extent are commercially available. Interpolation is a common way to approximate functions.