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Tangent fitting into a function

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Petra Olah

Civil/Environmental
Joined
Jul 30, 2020
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4
Location
HU
How can I fit a tanget into a function?

I need the red line in a function.

Thank you :-)

help_g29yry.jpg
 
If you fit a cubic spline to those 5 points, you have a cubic polynomial for the curve on both sides of that point.
You can differentiate either of those cubic polynomials to find dy/dx as a function of x, and then plug in your x value.

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(2B)+(2B)' ?
 
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