On 16/05/14 16:01, Johannes Schneider wrote:
If you do not have a closed form for T(E) you cannot calculate the exact value of I(V).Anyway. Assuming T is integrable you can approximate I(V). 1. Way to do: interpolate T(E) by a polynomial P and integrate P. For this you need the equation (coefficients and exponents) of P. Integrating is easy after that. 2. other way: Use Stair-functions: you can approximate the Value of IV() by the sum over T(E_i) * (E_{i+1} - E_i) s.t. E_0 = E_F-\frac{eV}{2} and E_n = E_F+\frac{eV}{2}.
snip] Or piecewise polynomials (splines). Duncan -- https://mail.python.org/mailman/listinfo/python-list
