Look in Excel help for the FORCAST() function. It also interpolates.
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Gary''s Student - gsnu200784


"Kiran Naik" wrote:

I want to know how to make iterpolation between Two vaues in two Different Rows
f.g
In one row ly/lx values are there in the range of 1,2,3,4...............10
In second row ax values are there in the range of
0.1,0.2,0.3,0.4.................1
Now I want to Know the values of ax for ly/lx equal to 2.5