minimization

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I am having difficulty getting the ```Minimization::PolakRibiere``` and ```Minimization::FletcherReeves``` minimizers work with a simple cost function of the form `proc{ |x| (x[0] - @p[0])**2 / s0**2 + (x[1] - @p[1])**2...

obromios

@safe_min = 4.503599e15 should be @safe_min = 4.503599e-15 ?

astudnev