The mantissify API provides functions which can format measurement values into human readable text, e.g. 0.000000123 to '123.0 nano' or 651234.8 to '651.2358 kilo'. Also values in scientific format are supported, e.g. 4.223e-05 to '-42.23 micro' The API tries to find a suitable SI-prefix (multiple of three) for your number.

The mantissify C API functions work stateless and are thread-safe.

GitHub pages for product information and demonstration:
https://messner75.github.io/mantissify
GitHub source code repository:
https://github.com/messner75/mantissify

Version

1.2.0

Date

2026-01-01

Author

Martin Messner

Copyright

(c) 2026 Martin Messner / messner75
SPDX-License-Identifier: MIT