and after interpolation

10 5
10.5 5.5
11 6
11.5 6.5
12 7
12.5 7.5
13 8

This result are obtained with Analysis/Inter/Extrapolate...
with this parameters
Make Curve Xmin = 10
Make Curve Xmax = 13
Make Curve # pts = 7

We want to do this directly with LabTalk !

If you have some XY data, and want to interpolate to find new Y values from an
array of new X values, it can be done easily.

Suppose you have

DATA1

A B

10 5
11 6
12 7
13 8

and you want

DATA2

A B

10 5
10.5 5.5
11 6
11.5 6.5
12 7
12.5 7.5
13 8

then simply construct a new X column in a new worksheet, so you now have

DATA2

A B
10
10.5
11
11.5
12
12.5
13

and type DATA2_B=DATA1_B(DATA2_A) and hit ENTER