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ssg

India
1 Posts
Posted - 03/27/2017 :  10:23:43 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin): origin8
Operating System: windows 7
Hi,
I am new in origin. I want to fit my data with a square root function. It is L-T data of simple pendulum experiment to find out the value of acceleration due to gravity(g)
I want to fit my data with this following equation-
y=(2*pi)*(sqrt(x/g))
where 'x' is independent variable and 'y' is dependent variable and 'g' is a parameter(can be made as constant).
Please help me.
Thank you in advance......

yuki_wu

896 Posts
Posted - 03/29/2017 :  02:07:11 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,
You should define your own fitting function as first, and then carry out the nonlinear curve fit with your fitting function.

We have a tutorial which may help you to learn this feature:
http://www.originlab.com/doc/Origin-Help/UserDef-FitFunc

Hope it helps.

Regards,
Yuki
OriginLab
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