NUMERICAL VALUES10113031010314NUMERICAL VALUESExtensive use is made in electrical engineering of the constants π and ε and of the numbers 2 and 10, the latter in logarithmic units and number systems. Table 1-14 lists functions of these numbers to 9 or 10 significant digits. In most engineering applications (except those involving the difference of large, nearly equal numbers), five significant digits suffice. The use of the listed values in computations with electronic hand calculators will suffice in most cases to produce results more than adequate for engineering work.
H. Wayne Beaty; Donald G. Fink: Standard Handbook for Electrical Engineers, Sixteenth Edition. NUMERICAL VALUES, Chapter (McGraw-Hill Professional, 2013), AccessEngineering