In [1]:

    

import sys
sys.path.append('../')
sys.path.append('../../')
from errorpro.interactive import *
init(locals())


    

In [2]:

    

import errorpro
help(errorpro)


    

    




Help on package errorpro:

NAME
    errorpro - python script to calculate physical quantities from data including units and error propagation

DESCRIPTION
    You may use these functions to work on your data:
    core.py functions:
    - assign
    - formula
    - ...
    interactive.py functions:
    - init
    - load_file
    - save_to_csv
    - ...
    
    Get detailed description with 'help(my_function)'!

PACKAGE CONTENTS
    core
    csv
    dimensions (package)
    fitting
    interactive
    interpreter
    mean_value
    parsing (package)
    plotting_gnuplot
    plotting_matplotlib
    pytex
    quantities
    si
    units

FILE
    c:\users\lukas\anaconda3\lib\site-packages\errorpro\__init__.py

In [2]:

    

%%eq
{
Spannung U <0.1> [V], Geschwindigkeit v <10> [km/h]
    1   260
    1.5 355
    2   360
    2.5 410
    3   500
    3.5 480
    4   580
}


    

In [3]:

    

v0, U0 = params('v0 U0')
z = assign(0.1, unit="V", name="z")
a = assign(5, unit="km/h", name="a")
fit(v0*exp(U/U0) + a*sin(U/z), U, v, [v0, U0, z, a])


    

    
Out[3]:





Results of fit
ResultsPlot
 

	

		
$v_{0} \; \mathrm{\left[\frac{m}{s}\right]}$
		
$U_{0} \; \mathrm{\left[V\right]}$
		
$z \; \mathrm{\left[V\right]}$
		
$a \; \mathrm{\left[\frac{km}{h}\right]}$
	
	

		
$62 \pm 7$
		
$4.1 \pm 0.6$
		
$0.114 \pm 0.004$
		
$23 \pm 21$
	
 

  

In [9]:

    

plot(U,v, {'label':'Messpunkte', 'marker':'.'}, U, v0*exp(U/U0) + a*sin(U/z), {'color':'blue', 'label':'geiler Fit'}, legend=5, xrange=[0.5,4.5], xlabel='Spannung $U$ [V]', size=[8,5])


    

    
Out[9]:

In [ ]:

    

%%eq
x = 5 <0.1>
y = 3*x**2 -x


    

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plot(x,y**2-y)


    

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%%eq
a = 1 <0.1>
b = 1 <0.1>
c = 1 <0.1>
d = a/b+c/b


    

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z = assign(d+c)
z