How to extend a curve until x-axis and y-axis

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Giuseppe
Giuseppe 2020-1-11
评论： Giuseppe 2020-1-15
Hi guys! I've plotted the red curve through a set of data (.txt file of points):
AVL_fitting.png
How can I extend the red curve untile axes of cartesian plane ?
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Giuseppe
Giuseppe 2020-1-15
No, I want to obtain this following one (i.e., I want to plot the green parts):
InkedAVL_fitting_LI_Moment.jpg

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WalterWhite
WalterWhite 2020-1-15
It doesnt seem to happen with interpolation(interp1)...atleast for me. But i've come up with an alternative based on the geometry and i've explained the reason along the code. Hope this helpsuntitled.jpg
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WalterWhite
WalterWhite 2020-1-15
It's basically the same concept for the other end. You just have to copy paste and change the values. But this is not an accurate result, mind you

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Navya Seelam
Navya Seelam 2020-1-15
Hi,
You can use interp1 function to interpolate your plot till x=0. There are different methods the function adopts for interpolation. You can choose from these methods to achieve appropriate interpolation. For more details on interp1 go through the link below.
https://www.mathworks.com/help/matlab/ref/interp1.html

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