Working with Uncertainties

This is still work in progress.

from uncertainties import ufloat

---------------------------------------------------------------------------

ImportError                               Traceback (most recent call last)

<ipython-input-1-caf4a16ea7e8> in <module>()
----> 1 from uncertainties import ufloat


ImportError: No module named 'uncertainties'

x = ufloat(2, 0.25) * 1 m
x

\[2.00+/-0.25 $m\]

square = x**2  # Transparent calculations
square

\[4.0+/-1.0 $m^2\]

square - x*x

\[0.0+/-0 $m^2\]

from uncertainties.umath import *  # sin(), etc.
x = ufloat(2, 0.25) * 35 deg
#x = 35 deg
#sin(x)
#x

x = ufloat(2, 0.25) * 1 m
#d = (2*x).derivatives[x]  # Automatic calculation of derivatives
#print(d)

from uncertainties import unumpy  # Array manipulation
random_vars = unumpy.uarray([1, 2], [0.1, 0.2]) * 1 s
print(random_vars)

[1.0+/-0.1 2.0+/-0.2] s

print(random_vars.s_.mean())

1.50+/-0.11