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Try to learn something about everything, and everything about something -Thomas Huxley “Darwin's bulldog” (1824-1895)

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public:calculator:guides:dm41x_curve_fitting

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Hints & Tips

DM41x Curve Fitting

Advantage Pac functions for statistical curve fitting.

CFIT program provides the functions to fit statistics data to LIN, Exp, LOG, Power and Best Fit

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  • Clear Statistics Registers with C (CLΣ)
  • Enter Statistics in usual way with Y, ENTER, X, Σ+
  • When all data pairs are entered press E (FIT)
  • Now choose which type of fit to use
    • L = Linear
    • LOG = Logarithmic
    • Ex = Exponential
    • P = Power
    • B = Best Fit
  • R/S to cycle through the coefficients of the curve fit a, b, R^2 (error ratio)
  • You can next enter an x value to find the curve-fitted y value
  • pressing R/S can exit back to the Curves menu L LOG Ex P B to try a different fit to the same data
  • pressing R/S can exit back to the main menu to clear and enter a new set of data

John Pumford-Green 31/07/24 14:46 BST

Further Information

public/calculator/guides/dm41x_curve_fitting.1722436690.txt.gz · Last modified: 06/03/25 06:49 GMT (external edit)