old_contents: # globals.py
  
  # MIT License
  
  # Copyright (c) 2017 Rene Jean Corneille
  
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  
  def derivative_matrix(size, order=1):
  
  	D=zeros((size-order, size))
  
  	if order==0:
  		d=[1]
  	elif order==1:
  		d=[-1,1]
  	elif order==2:
  		d=[1,-2,1]
  	elif order==3:
  		d=[-1,3,-3,1]
  	for n in range(size-order):
  		for l in range(order+1):
  			D[n,n+l]=d[l]
  	return D
  
new_contents: # globals.py
  
  # MIT License
  
  # Copyright (c) 2017 Rene Jean Corneille
  
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  
  from __future__ import absolute_import
  
  from numpy import zeros
  
  __all__ = ['derivative_matrix']
  
  def derivative_matrix(size, order=2):
  	D=zeros((size-order, size))
  	if order==0:
  		d=[1]
  	elif order==1:
  		d=[-1,1]
  	elif order==2:
  		d=[1,-2,1]
  	elif order==3:
  		d=[-1,3,-3,1]
  	for n in range(size-order):
  		for l in range(order+1):
  			D[n,n+l]=d[l]
  	return D
  
subject: Update globals.py