Hi Harshawardhan,

I did a trial with 2 polynomial trends, one from 7 Deg to 21 Deg,
the other from 21 Deg to 67 Deg.

I had to go right up to a 6th order polynomial to improve the accuracy
of the curve fit. I don't think it is quite as tight as you are looking for
but
it is very close, plug some different values into the 'new X' cell and you
will
see what I mean.

Actually, I thought that I should have gotten a better fit so maybe someone
else can take a look and see if I have got a small error in there somewhere.

You can download a copy here
http://www.savefile.com/files/1833930
It's in XL2000 format.

HTH
Martin

"HARSHAWARDHAN. S .SHASTRI"
wrote in message
...
I AM WORKING ON CAM DATA.WHAT I WANT IS TO FIND INTERMIDIATE VALUE OF A
CURVE.
FOLLOWING IS MY DATA ,WHAT I NEED IS TO FINF THE VALUE SAY AT 11.3 DEG.

DEG LIFT
0.0 9.0000
1.0 9.0000
2.0 9.0000
3.0 9.0000
4.0 9.0000
5.0 9.0000
6.0 9.0000
7.0 9.0000
8.0 8.9874
9.0 8.9539
10.0 8.8972
11.0 8.8154
12.0 8.7089
13.0 8.5770
14.0 8.4185
15.0 8.2318
16.0 8.0151
17.0 7.7655
18.0 7.4795
19.0 7.1500
20.0 6.7883
21.0 6.4133
22.0 6.0454
23.0 5.6961
24.0 5.3647
25.0 5.0498
26.0 4.7507
27.0 4.4664
28.0 4.196
29.0 3.9388
30.0 3.6941
31.0 3.4613
32.0 3.2396
33.0 3.0286
34.0 2.8279
35.0 2.6368
36.0 2.4549
37.0 2.2819
38.0 2.1173
39.0 1.9609
40.0 1.8122
41.0 1.671
42.0 1.5366
43.0 1.4099
44.0 1.2895
45.0 1.1755
46.0 1.0678
47.0 0.9661
48.0 0.8704
49.0 0.7802
50.0 0.6957
51.0 0.6165
52.0 0.5426
53.0 0.4738
54.0 0.4099
55.0 0.3511
56.0 0.2971
57.0 0.2477
58.0 0.2032
59.0 0.163
60.0 0.1274
61.0 0.0963
62.0 0.0697
63.0 0.0473
64.0 0.0294
65.0 0.0156
66.0 0.0063
67.0 0.0011