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Fitting a cubic equation - Curve fitting calculator
Method and examples
Fitting a cubic quation - Curve fitting
(Method of Least Squares)
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)
Calculate Fitting a straight line - Curve fitting using Least square method
X
5
4
3
2
1
Y
1
2
3
4
5
Calculate Fitting a straight line - Curve fitting using Least square method
X
3
5
7
9
11
Y
2.3
2.6
2.8
3.2
3.5
Calculate Fitting a straight line - Curve fitting using Least square method
X
1996
1997
1998
1999
2000
Y
40
50
62
58
60
Calculate Fitting a straight line - Curve fitting using Least square method
X
1992
1993
1994
1995
1996
1997
1998
1999
Y
38
40
65
72
69
60
87
95
Calculate Fitting a second degree parabola - Curve fitting using Least square method
X
12
10
8
6
4
2
Y
6
5
4
3
2
1
Calculate Fitting a cubic quation - Curve fitting using Least square method
X
12
10
8
6
4
2
Y
6
5
4
3
2
1
Calculate Fitting a second degree parabola - Curve fitting using Least square method
X
1991
1992
1993
1994
1995
1996
1997
1998
1999
Y
2
6
7
8
10
11
11
10
9
Calculate Fitting a second degree parabola - Curve fitting using Least square method
X
1995
1996
1997
1998
1999
2000
Y
10
12
18
15
13
16
Solution
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