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## Catenary = Physic + Math + IT  24-Ruby III

## Catenary = Physic + Math + IT

It is the site of the article "Catenary = Physic + Math + IT" (color picture + Mathcad sheet) Two students - Three smiles Real catenary Two vectors Parabola and 3 points Parabola thru 3 points Parabola near 10 points Catenary and 10 points   Physical Mathematics

6 REPLIES 6  24-Ruby III
(To:ValeryOchkov)

We can have thru 5 points a hyperbola (D<0), an ellipse (D>0) or (good chance D=0) a parabola:   24-Ruby III
(To:ValeryOchkov)

The solution with the Find Function: the partial vectorization!

And second - we can add more points, change the Find function to MinErr function and get not the interpolation but approximation!   24-Ruby III
(To:ValeryOchkov)

With lsolve function! We do not need guess values! But how can we add more points (6, 7, 9 etc) without change the Matrix M and the vector v?   24-Ruby III
(To:ValeryOchkov)   24-Ruby III
(To:ValeryOchkov)     