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How to: Numerical Derivative in Python

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Learn how to take a simple numerical derivative of data using a difference formula in Python.
Here we use "Spyder" IDE as the Python Shell and the following libraries: numpy and matplotlib
Here is the script:
import numpy as np
def func(x,A,B):
return A*x**2+B*x
ylist = func(xlist,2,1.4)
def D(xlist,ylist):
xprime=[]
for i in range(len(yprime)):
xtemp = (xlist[i+1]+xlist[i])/2
return xprime, yprime
xprime, yprime = D(xlist,ylist)
xprime2, yprime2 = D(xprime,yprime)
Here we use "Spyder" IDE as the Python Shell and the following libraries: numpy and matplotlib
Here is the script:
import numpy as np
def func(x,A,B):
return A*x**2+B*x
ylist = func(xlist,2,1.4)
def D(xlist,ylist):
xprime=[]
for i in range(len(yprime)):
xtemp = (xlist[i+1]+xlist[i])/2
return xprime, yprime
xprime, yprime = D(xlist,ylist)
xprime2, yprime2 = D(xprime,yprime)
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