httprover's 2nd blog

   It appears that the way the variation is done affects the minimum of the action integral. If one arranges the variation so that it is nor...

The formulas for v · dr modified to contain the variations are, with t being the tangent unit vector to the trajectory gives,

  Maupertuis loosely introduced the Principle of Least Action in 1741. A few years later in 1744 in Methodus inveniendi  Euler associated A...

   One can make the vectors or functions used to compute the fit coefficients more symmetrical if one defines a set of orthogonal polynomial...

   My derivation of the uncertainty in the fit coefficients assumed that the expected value <δy j δy k >=0 for k≠j.   It is not obviou...

   One might wonder what the uncertainty in values of the coefficients in the last blog might have been. Repeated "experiments" sh...

   If one repeats the same experiment a number of times the errors become more uniformly distributed. A plot of the data shows a more unifor...