data sets (x,y), stored in columns of the ΣDAT matrix. For this application, you need to have at least two columns in your ΣDAT variable.

For example, to fit a linear relationship to the data shown in the table below:

xy

0 0.5

1 2.3

2 3.6

3 6.7

4 7.2

5 11

•First, enter the two columns of data into variable ΣDAT by using the matrix writer, and function STOΣ.

•To access the program 3. Fit data.., use the following keystrokes: ‚Ù˜˜@@@OK@@@ The input form will show the current ΣDAT, already loaded. If needed, change your set up screen to the following parameters for a linear fitting:

•To obtain the data fitting press @@OK@@. The output from this program, shown below for our particular data set, consists of the following three lines in RPN mode:

3:'0.195238095238 + 2.00857242857*X'

2:Correlation: 0.983781424465

1:Covariance: 7.03

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