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coefficients from regress()

bpl3-disabled
Newbie

coefficients from regress()

I am reducing data taken from test flying an aircraft. Regress and interp give an extremely close fit to my experimental data using a third-order polynomial but I really need the coefficients so that I can differentiate the polynomial symbolically. Any suggestions?

I am a new user of Mathcad so if this is a stupid newbie question, I apologize in advance.

1 REPLY 1

coefficients from regress()

Hi Brian,

Find attached a file which I hope will help solve your problem. I cant take full credit for it, because it has been cobbled together from various Mathcad examples plus some ideas of my own.

Regards,
Neil Moran
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