title: AttributeError: 'module' object has no attribute 'Zeros'
body: <p>I have used np.Zeros in line 4 and its not giving error why it is giving error in line 17 that   AttributeError: 'module' object has no attribute 'Zeros'  and in line 27 it is giving error.. error in  y= newtonRaphson(residual,startSoln(x),1.0e-5)</p>
  
  <pre><code>import numpy as np
  from newtonRaphson import *
  
  def residual(y):
      r=np.Zeros((m+1))
      r[0]=y[0]
      r[m]=y[m]-1.0
      for i in range(1,m):
          r[i]=y[i-1]
      return r
  
  def F(x,y,yPrime):
      F=-3.0*y*yPrime
      return F
  
  def startSoln(x):
      y=np.Zeros((m+1))
      for i in range(m+1):
          y[i]=0.5*x[i]
      return y
  
  xStart=0.0
  xStop=2.0
  m=10
  h=(xStop-xStart)/m
  x=np.arange(xStart,xStop+h,h)
  y= newtonRaphson(residual,startSoln(x),1.0e-5)
  print '\n           x            y'
  for i in range(m+1):
      print x[i],'           '.y[i]
  residual(0.0005)
  </code></pre>
  
  <p>here is the newtonRaphson module</p>
  
  <pre><code>def newtonRaphson(f,df,a,d,tol=1.09e-9):
      import error
      fa= f(a)
      if fa == 0.0 :return a
      fb = f(b)
      if fb ==0.0: return b
      if fa*fb &gt;0.0: error.err
      x= 0.5*(a+b)
      for i in range(30):
          if abs(fx)&lt;tol :return x
          if fa*fx &lt;0.0:
              b=x
          else:
              a=x ;fa=fx
          dfx=df(X)
          try:dx= -fx/dfx
          except ZeroDivisionError: dx=b-a
          x=x+dx
          if (b-x)*(x-a)&lt;0.0:
              dx=0.5*(b-a)
              x=a+dx
          if abs(dx)&lt; tol*max(abs(b),1.0): return x
          print 'Too many iterations in Newton-Raphson'
  </code></pre>