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24-Ruby IV

## Catenary = Physic + Math + IT

It is the site of the article "Catenary = Physic + Math + IT" (color picture + Mathcad sheet)

Two students - Three smilesReal catenaryTwo vectorsParabola and 3 pointsParabola thru 3 pointsParabola near 10 pointsCatenary and 10 points

Physical Mathematics

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

24-Ruby IV
(To:ValeryOchkov)