Re: Non-Linear Least Square

You can solve this system of linear equations using WolframAlpha

Re: Non-Linear Least Square

Hi thanks for the link, but unless I'm missing something (and I literally have no idea at all) but I don't think that could work out non linear regression equations (not that I know exactly what that means but I think I get the gist). There's no-where to put parameters in. Or am I wrong?

Re: Non-Linear Least Square

Quote:

Originally Posted by

**Baz300** Hi thanks for the link, but unless I'm missing something (and I literally have no idea at all) but I don't think that could work out non linear regression equations (not that I know exactly what that means but I think I get the gist). There's no-where to put parameters in. Or am I wrong?

If you plug in values of x and y into starting equation you should obtain six equations with six unknowns (a,b,c,d,e,f)

Re: Non-Linear Least Square

Do you mean input the equation 6 times each with the different set of x and y values. I tried with one set and obviously it spouted out the equation back at me in a few different ways but no values for a to f.

Thanks Barry

Re: Non-Linear Least Square

Quote:

Originally Posted by

**Baz300** Do you mean input the equation 6 times each with the different set of x and y values. I tried with one set and obviously it spouted out the equation back at me in a few different ways but no values for a to f.

Thanks Barry

$\displaystyle (a,b,c,d,e,f)=(7,2,6,8,9,7)$

Re: Non-Linear Least Square

I don't know how you did that but that's great, thanks so much for your time and patience.

Regards, Barry