GNU Units | Hugonweb Annotated Link Bibliography
https://www.gnu.org/software/units/
A general purpose calculator for numbers with units.
Normal algebraic precedence applies, and you can use normal operators like +,-,*,/,^,sin,cos,exp,ln,log,round,floor,ceil.
Some extra guidance:
| Symbol | Explanation | Example |
|---|---|---|
* |
Low priority multiplication | 3 N * m |
| <space> | High priority multiplication -- Useful combined with / |
3 N m |
/ |
Low priority division -- Everything after is in the denominator | 1/2 kg m = 0.5 / (kg m) |
per |
Low priority division -- Everything after is in the denominator | 1 per 2 kg m = 0.5 / (kg m) |
| |
High priority division -- Only adjacent numbers are divided | 1|2 kg m = 0.5 kg m |
_ |
The result of the last computation |