11. "' MagicPlot "'is a technical plotting, curve fitting and data analysis application. 12. QtiPlot can be used to present 2D and 3D data and has various data analysis functions like curve fitting . 13. In curve fitting problems, the constraint that the interpolant has to go exactly through the data points is relaxed. 14. It seems like a curve fitting problem, but which is the curve that should be fitted to the data? 15. :I've never used Matlab but have done curve fitting before, using polynomial parameterized arcs and splines. 16. Origin's curve fitting is performed by the nonlinear least squares fitter which is based on the Levenberg Marquardt algorithm. 17. It's up to the researcher to decide what it means, not the curve fitting program, or programmer. 18. XLfit s curve fitting engine allows linear and non-linear curve fits, smoothing, statistics, weighting and error bars. 19. A curve fitting program can find the values of the coefficients a, b, and c, and the constant d. 20. They most likely plotted the range and angle from the telemetry, and used ballistic curve fitting to arrive at the most likely impact point.