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Well, that is mathematically rather sophisticated. To prove it, the following two equations are needed (2 of the 4 famous equations that explain classical electrodynamics completely:) \oint\vec{B}d\vec{s}=\mu_0 I+\mu_0\varepsilon_0\frac{d}{dt}\oint E_n dA...

Hi, at first, you need a drawing showing the relevant forces: Due to the displacement of the pendulum, the gravitational force causes a resulting force (according to the drawing): F_r=-F_G \sin(\theta)=Mg\sin(s/L) where s is the displacement on the circular arc (because of the...

Hi, I've to cope a little problem concerning general nonlinear regression. To cut a long story short: I've got a very complicated function y=f(a,x), and a lot of measured values for x and y. The goal is to fit the free parameter a. Therefor, I wrote a simple c++ program that calculates the...