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Curve Fitting
Method of Least Square
 Type your data, for seperator you can use space or tab for sample click random button OR Rows : Click On Generate Find Fitting of a straight line (y=a+bx) second degree parabola (y=a+bx+cx^2) cubic quation (y=a+bx+cx^2+dx^3)
1. Calculate straight line (y=a+bx) using Least square method
 X 5 4 3 2 1 Y 1 2 3 4 5
2. Calculate straight line (y=a+bx) using Least square method
 X 3 5 7 9 11 Y 2.3 2.6 2.8 3.2 3.5
3. Calculate straight line (y=a+bx) using Least square method
 X 1996 1997 1998 1999 2000 Y 40 50 62 58 60
4. Calculate straight line (y=a+bx) using Least square method
 X 1992 1993 1994 1995 1996 1997 1998 1999 Y 38 40 65 72 69 60 87 95
5. Calculate second degree parabola (y=a+bx+cx^2) using Least square method
 X 12 10 8 6 4 2 Y 6 5 4 3 2 1
6. Calculate cubic quation (y=a+bx+cx^2+dx^3) using Least square method
 X 12 10 8 6 4 2 Y 6 5 4 3 2 1
7. Calculate second degree parabola (y=a+bx+cx^2) using Least square method
 X 1991 1992 1993 1994 1995 1996 1997 1998 1999 Y 2 6 7 8 10 11 11 10 9
8. Calculate second degree parabola (y=a+bx+cx^2) using Least square method
 X 1995 1996 1997 1998 1999 2000 Y 10 12 18 15 13 16
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