4: Scientific Notation, Rounding, Conversions, and Dimensional Analysis
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- 4.1: Scientific Notation
- Scientific notation is used to make very large numbers such as 4,895,000,000 or very small numbers such as 0.0000073 easier to use. In the Water industry, we use very large numbers when referring to the volume of water in large tanks or very small numbers when referring to pollutants per gallon of water.
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- 4.3: Dimensional Analysis
- Often in the Water and Wastewater Operations, we must use the relationship between different quantities to determine the results of various calculations. In other words, we will need to perform calculations while also recognizing the changes in the measurements and dimensions to assure the measurement of the result is reasonable.
Thumbnail: Expansion of small numbers expressed in scientific notation (CC BY SA 3.0 Unported; Brian Brondel via Wikipedia )