how can i get interpolated value without sorting

[ttokoro]

[Werner_E]

> how can i get interpolated value without sorting

interpolated value?? Looks like you intend to extrapolate!

I wonder which results you expect from your f(20m) or f(22m)!

Furthermore your data for LCF' ---> Draft  is not corresponding to a unique function, at least not in the range from 22.62m to 22.681 m.

So which result do you expect for f(22.66 m)?? The upper or the lower one?

@ttokoro used the inverse mapping Draft ---> LCF' (dotted green in the pic below). Not sure if thats what you are looking for.

Only if you sort you can get an inter/extra-polation from LCF' ---> Draft, but it may not be what you expect!

[MM_10735997]

this is showing an error

[Werner_E]

Maybe you changed the value of the variable ORIGIN to something  else than the default value 0. If you did, you also must use that value here. Type ORIGIN instead of "0" and you are on the safe side.

BTW, the definition of the range x does not make any sense for any of the calculations done. The only use for this variable x would be when plotting.

[terryhendicott]

Hi,

Interpolation from LCF' to Draft without sorting

Cheers

Terry