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 Can origin deal with small numbers?
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ManfredFu

China
2 Posts

Posted - 03/07/2023 :  04:16:05 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin 2023+windows11
I am trying to draw the Curve for the Planck Blackbody formula, but I noticed that I can only draw half of it because the curve on the domain of 0<x<2.5*10^-6 just disappeared. I wonder whether it's because that Originlab has reached its calculating limitation when x is very small. Can anybody solve this question for me?

UltraMFF

YimingChen

1651 Posts

Posted - 03/07/2023 :  09:26:19 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Origin can definitely handle the value range you are working on. Could you attach your project with the graph to show the issue? Thank you.

James
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ManfredFu

China
2 Posts

Posted - 03/08/2023 :  9:14:56 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Of course, thank you for reaching out for me. Here is a graph showing the issue and here is a graph of my project. The formula and the numerical preview is just fine but the graph is not correct. The y should be closing to zero when x is close to zero, so there is no problem with the range of the y axis.
quote:
Originally posted by YimingChen

Origin can definitely handle the value range you are working on. Could you attach your project with the graph to show the issue? Thank you.

James



UltraMFF

Edited by - ManfredFu on 03/08/2023 9:21:38 PM
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YimingChen

1651 Posts

Posted - 03/09/2023 :  09:03:23 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
You need to rescale the graph (Ctrl + R) as the curve is beyond the y-axis limit at small x values.


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