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Suppose I have an equation f(x)=0. I'm trying to find the root of this equation using Newton Raphson method. But when I'm trying to plot this function, the function is starting from 0, that is for x=0 or very very close to 0, this function becomes 0.

My question is, if I calculate the minima of this function, can that be considered as root, since the function is monotonically non decreasing starting from 0?

Or is there any other suitable method available?

  • Give us more and clearer information. What is the domain of your function? How is the function given? How do you know that "this function becomes 0" and how do you know it is "monotonically non-decreasing"? By looking at the plot? What do you mean by "calculate the minima"? Numerically? And what does this mean "if I calculate the minima of this function, can that be considered as root". Do you want to take the x-value of each minimum as zero? – frank Mar 05 '22 at 10:32

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