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Re: Equations of a Straight Line with multiple points
Posted:
Dec 7, 2012 7:37 AM


> I'd like to create a formula that create multiple > straight lines. It all has to be in one single > formula. For example: > > p1(0,0) > p2(1,4) > p3(2,9) > p4(5,9) > > The slope should always be 0 and at any given point > the y value should jump to the y value. > > Is this possible at all? If not, would it be possible > if I just do a linear interpolation. If so, how can I > get the correct formula? > > thanks
I see now: the slope should always be 0  so no linear, but a constant approximation is what you are looking for. Then L(x)= 0*(x>=0)*(x<1) + 4*(x>=1)*(x<2) + 9*(x>=2)*(x<=5)
Best wishes Torsten.



