I'm a student at Universidad de Buenos Aires, currently studying Physics. I don't know what to write to earn the badge so I'll just fill it up with this sentence. Also, I'll embed this code for no reason:

from lmfit import Minimizer, Parameters, report_fit
import matplotlib.pyplot as plt
w1, V1, phi1, scal1 = np.loadtxt("./FiltroPasaBajo_1.txt", delimiter = "\t", unpack = True)

t = w1
eV= V1*0.03 + 0.01

def funcion(parametros, x, y):
    R = parametros['R'].value
    C = parametros['C'].value

    modelo = 4/((1+(x**2)*(R**2)*(C**2))**1/2)
    return modelo - y
parametros = Parameters()
parametros.add('R', value = 1000, min= 900, max = 1100)
parametros.add('C', value = 1E-6, min = 1E-7, max = 1E-5)

fit = Minimizer(funcion, parametros, fcn_args=(t,V1))
resultado = fit.minimize()


final = V1 + resultado.residual
report_fit(resultado)

try:
    plt.plot(t, V1, 'k+')
    plt.plot(t, final, 'r')
    plt.show()
except ImportError:
    pass