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I am currently using origin to plot my data and using their fitting options I am able to get r square .98. Now I need to know slope at different positions of the curve even at x= 0. I tried one of their plugin and it gives me only three decimal point and which is not good enough.

Could you please suggest some software like origin to make my calculation easily.

Thank you.

MD

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# Need to draw tangent at different positions of the graph

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