How do I get an interpolated scalar value from a 2D lookup table z=f(x,y)?

I have a table of numerical values. Rows correspond to discrete values of a parameter, columns to discrete values of a second parameter. I want tin interpolate a scalar value from the table :
Table Z = f(X,Y)
find Zi,j corresponding to specified X and Y values (which may not be the exact discrete valuescorresponding to rows and columns).
So, I want to find Z(1.5, 3) from a table
X 1 2 3
Y
2 10 15 20
4 50 60 70
The results would be Z = 33.75
The LUT routines interpolate an entire table rather than giving a single answer. earlier discussions have posted routines that find the nearest table entry but do not interpolate between entries.
This sounds very simple....
Thanks.

Have a look at the bilinear interpolation examples quoted in the various links of this idea.
(Use threshold array to get the fractional array index from the axis mapping)
LabVIEW Champion . Do more with less code and in less time .

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We want to access a variable from the run method of a
Thread externally in a class or in a method. I presume you mean a member variable of the thread class and not a local variable inside the run() method.
Even
though I make the variable as public /public static, I
could get the value till the end of the run method
only. After that scope of the variable gets lost
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I find it easier to implement the Runnable interface rather than extending a thread. This allows your class to extend another class (ie if you extend thread you can't extend something else, but if you implement Runnable you have the ability to inherit from something). Here's how I would write it:
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NB: if i write the variable in to a file I am able to
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How can I get the variable with the value from Thread's run method

We want to access a variable from the run method of a Thread externally in a class or in a method. Even though I make the variable as public /public static, I could get the value till the end of the run method only. After that scope of the variable gets lost resulting to null value in the called method/class..
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HT1386 My MacBook Pro HD crashed. It is all up and runmning except for one issue. I have about 200 songs on my iPhone but have only gotton 53 back on my laptop and those are the songs I purchased via iTunes. How do I get the rest of the songs from iPhon

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Hey kbert73
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To be absolutely honest, I don't really understand what this box is for, so I shall just use it to repeat and expand on my question. (I have already sent a "Feedback" comment on the same topic).
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Dear Mike
Thanks for the support. I am utterly amazed that after all the hype about how good iTunes is that it cannot play a downloaded CD in the correct order, and that what that order should be is not available directly from within one's own iTunes installation. (I know that one can go back to the iTunes Store to check what the order should be, but having downloaded the tracks surely iTunes is clever enough to retrieve this important information.
My iTunes to differ from yours in that I have also noticed that it seems unable to download copies of my "talking books" in the correct order either. But in my case it downloads them - from a CD - in order, but with the first track downloaded first - so that it appears at the bottom of the column of tracks so that it would get played last! (At least this is, while being inexplicable, a relatively "logical" bit of blundering and because of this is relatively easy to put right!).
I like many genres of music, some of which are not really programmed except perhaps by the artist performing them. I know that Frank Sinatra was very careful to programme his album songs to obtain a particular effect and in relation to the keys of the music. iTunes presumes to know better.
Film scores may be totally randomly put together, in some cases, but in others the order is vital to one's appreciation of the music as a whole and how it relates to the plot of the film.
In symphonic music most works are divided into sections and are conceived by the composer that way. Some individual sections may gain a life of their own if played separately, but they are never complete in the sense that the composer envisaged them without being placed in their proper context.
Opera and probably most choral music too, is similar except that the words may well become meaningless if the order is changed at the whim of a piece of ill-written computer code, while ballet music has to be heard totally within its sequential context or it becomes meaningless.
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Well that's off my chest! now I can get down to creating some sort of order in my iTunes Libraries, knowing that I have to reconsult all the sources in order to confirm the source playing order.
Anyway thanks again. At least I know that it is not just me
alanfromthatcham

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How do I get an interpolat​ed scalar value from a 2D lookup table z=f(x,y)?

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How do I get an interpolated scalar value from a 2D lookup table z=f(x,y)?