def DeBroglieErr(voltage,voltageErr,m = Me):
v = Symbol("v",positive = True) # initialize symbols
h = Symbol("h",positive = True)
c = Symbol("c",positive = True)
m = Symbol("m",positive = True)
from sympy import sqrt # initialize symbols
waveLen = h/(sqrt(2*m*v)*c)
# get the error function
func = er.getRelError([v],waveLen)
# calculate error for each point
error = func(voltage,voltageErr)
return error
def BraggErr(Diam,DiamErr,d,L = L,r = r):
v = Symbol("v",positive = True) # initialize symbols
D = Symbol("D",positive = True)
L = Symbol("L",positive = True)
from sympy import sqrt,atan,sin,pprint # initialize symbols
a = sqrt(r**2-D**2/4)
x = (L/(L-(r-a))-1)*D/2 #based on geometric calculations that can bee seen in my lab notebook
DCorect = D+2*x
theta = DCorect/(2*L)/2
waveLen = 2*d*theta
# get the error function
func = er.getRelError([D,L],waveLen)
# calculate error for each point
error = func(voltage,130,voltageErr,2)
return error
