Engineering notation or engineering form (also technical notation) is a version of scientific notation in which the exponent of ten is always selected to be divisible by three to match the common metric prefixes, i.e. scientific notation that aligns with powers of a thousand, for example, 531×10<sup>3</sup> instead of 5.31×10<sup>5</sup> (but on calculator displays written in E notation – with "E" instead of "×10" to save space) to represent 531,000. As an alternative to writing powers of 10, SI prefixes can be used,

References

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  • Engineering Prefix User Defined Function for Excel
  • Perl CPAN module for converting number to engineering notation
  • Java functions for converting between a string and a double type