Expressing results in scientific notation ​

Infiltration rates and permeabilities often range over several orders of magnitude. Using standard number notation, there is not enough room in the boxes to cope with the possible range of values, and significant figures. Scientific notation is used to get around the problem.

Any number can be expressed as a power of 10, in the form NEX where N (positive or negative) is a number with one or more digits, E means 10, and X (positive or negative) is the power to which 10 is raised. If you are unfamiliar with this method, try entering a few numbers in the box below to see how it works. A few examples: 1E00 = 1 (ie 1 x 10 raised to the power 0 = 1): 1E01 = 10: 1.5E02 = 150: 1E-01 = 0.1: 1F-02 = 0.01.

Type any number (that will fit in the box); press Enter This is the same number in scientific notation

Your number has been rounded to two significant figures. When dealing with permeabilities, it is usually superfluous to report results with any more accuracy.