System requirements: Windows any

Data input:

Please make a file named "cir1.txt" without the quotes in the same directory.
In this file, the first line should be the option code.

The option codes are as follows:
2500 for Minimum Zone circularity Error from coordinate data
2600 for Least Square Circularity Error from coordinate data
2700 for Minimum Circumscribing Circle from coordinate data
2800 for Maximum Inscribed Circle from coordinate data

The second line should contain the number of points in the data (2048 maximum).

The third line should contain the zero criterion, the value below which may be taken as zero. This depends on the accuracy required, I use 0.00001 usually. Scale up the data values suitably.

The fourth line onwards should contain the data coordinates in the form x TAB y, each line containing data for one point.

Also please see the sample data file.

The results are outputted to the file "result.txt" in the same directory.