NUM2ENG: Fast number to engineering notation (SI) conversion

Convert numbers to engineering notation.

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Cite As

Roman Müller-Hainbach (2026). NUM2ENG: Fast number to engineering notation (SI) conversion (https://se.mathworks.com/matlabcentral/fileexchange/63928-num2eng-fast-number-to-engineering-notation-si-conversion), MATLAB Central File Exchange. Retrieved .

Acknowledgements

Inspired by: Number to Scientific Prefix

Inspired: num2eng

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.2.4

typo bug fix

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1.2.4-2

Fixed mistreatment of input values that are very near to zero.

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1.2.4-1

Updated thumbnail

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1.2.4-0

- Added automatic pluralization of written out units
- Added 'NoPlural' option
- Added examples to description
- Improved performance slightly

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1.2.3

Improved input parsing performance

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1.2.3-0

Improved issuing of warnings

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1.2.2

Improved performance for scalar and non-scalar inputs.

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1.2.2-1

Fixed wrong spacing for numbers that are printed in exponential form.

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1.2.2-0

- Added 'Unit' option
- Renamed 'FullNames' option to 'FullName'

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1.2.1

Fixed title again, FEX is acting up

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1.2.1-0

- Increased performance slightly for scalar inputs
- Updated description with performance considerations
- Fixed handling of inputs in a few edge cases

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1.2.0

Fixed wrong title

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1.2.0-0

- Fixed output in situations where the number of digits increased due to rounding
- Added support for NaN and infinite values
- Minor performance optimizations

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1.1.1

- Fix bug with second output
- Improve description

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1.1.0

- Added two-outputs form
- Fixed and updated description

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1.0.0

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