Units
Abstraction of a Unit, includes convertions and basic operations.
—— EXAMPLE : Free Fall (No air resistance) ——-
from units_test import Unit, Constants
g = Constants.g
velocity = Unit(1, "km.s^-1")
time = Unit(2, "min")
distance = - g*time**2*(1/2) + velocity*time
print( distance ) # Unit( 4.93680e+04 m )
print( distance.to("mi").text() ) # 105.24040 mi
Notes:
- When having a unit to the zero e.g. km^0 in an operation, it’ll give a float, ussually
- Cannot multiply by const on the left i.e. 2*Unit() gives Error, but Unit()*2 is valid
- Try to use parenthesis, i.e. Unit()* 1/2 gives Error, but Unit* (1/2) is valid
- Every operation translates back to metric, u have to convert back after it
Limitations:
- Can’t compute sqrt, sin, cos, exp, or Unit()**Unit(), cuz is not implemented
- TODO : implement temperatures units (°C,°F,K,…)
- TODO : add computations of errors
- TODO : implement nparrays that have the same fucntionality
Instalation: Download the .py file and put it in ../Python38/Lib/site-packages, or just put it in the same folder your working, then you can import it no problem. I’m using python 3.8 but it should work on versions above. No dependencies (yet).
