What is the best form of integrate a product of a function with a cosine function?












0














I want integrate a function of this form $ int_0^{s_f} V_{pot}(s)cos(frac{kpi}{s_f}s) mathrm{d}s$, where $V_{pot}$ is an array and has this form Vpot
and k is $k=0,1,2 ... 2*N_f$.
So, this is my code



import numpy as np
from scipy.integrate import simps
Nf = 200 #número de terminos de la integral
s = np.zeros(NP)
for i in range(0,NP):
s[i] = (i-1)*H
def f(k):
return [(1/SF)*np.cos(np.pi*k*s/SF)*Vpot]
IVp = np.zeros(2*Nf)
for k in range(0,2*Nf):
Func = f(k)
y1 = np.array(Func,dtype=float)
I = simps(y1,s)
IVp[k] = I


Then, I got some data but I don't know if is correct. How can I proceed
and what's the best method of integration in this case?










share|improve this question





























    0














    I want integrate a function of this form $ int_0^{s_f} V_{pot}(s)cos(frac{kpi}{s_f}s) mathrm{d}s$, where $V_{pot}$ is an array and has this form Vpot
    and k is $k=0,1,2 ... 2*N_f$.
    So, this is my code



    import numpy as np
    from scipy.integrate import simps
    Nf = 200 #número de terminos de la integral
    s = np.zeros(NP)
    for i in range(0,NP):
    s[i] = (i-1)*H
    def f(k):
    return [(1/SF)*np.cos(np.pi*k*s/SF)*Vpot]
    IVp = np.zeros(2*Nf)
    for k in range(0,2*Nf):
    Func = f(k)
    y1 = np.array(Func,dtype=float)
    I = simps(y1,s)
    IVp[k] = I


    Then, I got some data but I don't know if is correct. How can I proceed
    and what's the best method of integration in this case?










    share|improve this question



























      0












      0








      0







      I want integrate a function of this form $ int_0^{s_f} V_{pot}(s)cos(frac{kpi}{s_f}s) mathrm{d}s$, where $V_{pot}$ is an array and has this form Vpot
      and k is $k=0,1,2 ... 2*N_f$.
      So, this is my code



      import numpy as np
      from scipy.integrate import simps
      Nf = 200 #número de terminos de la integral
      s = np.zeros(NP)
      for i in range(0,NP):
      s[i] = (i-1)*H
      def f(k):
      return [(1/SF)*np.cos(np.pi*k*s/SF)*Vpot]
      IVp = np.zeros(2*Nf)
      for k in range(0,2*Nf):
      Func = f(k)
      y1 = np.array(Func,dtype=float)
      I = simps(y1,s)
      IVp[k] = I


      Then, I got some data but I don't know if is correct. How can I proceed
      and what's the best method of integration in this case?










      share|improve this question















      I want integrate a function of this form $ int_0^{s_f} V_{pot}(s)cos(frac{kpi}{s_f}s) mathrm{d}s$, where $V_{pot}$ is an array and has this form Vpot
      and k is $k=0,1,2 ... 2*N_f$.
      So, this is my code



      import numpy as np
      from scipy.integrate import simps
      Nf = 200 #número de terminos de la integral
      s = np.zeros(NP)
      for i in range(0,NP):
      s[i] = (i-1)*H
      def f(k):
      return [(1/SF)*np.cos(np.pi*k*s/SF)*Vpot]
      IVp = np.zeros(2*Nf)
      for k in range(0,2*Nf):
      Func = f(k)
      y1 = np.array(Func,dtype=float)
      I = simps(y1,s)
      IVp[k] = I


      Then, I got some data but I don't know if is correct. How can I proceed
      and what's the best method of integration in this case?







      python python-3.x integration numerical-integration






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 12 at 5:42









      Cheche

      828218




      828218










      asked Nov 12 at 1:44









      PCat27

      185




      185





























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