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# Derivative calculator

This calculator evaluates derivatives using analytical differentiation. It will also find local minimum and maximum, of the given function. The calculator will try to simplify result as much as possible.

There are examples of valid and invalid expressions at the bottom of the page.

Derivative Calculator
Maximum and Minimum Calculator
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 local minimum local maximum
example 1:
$$\left( \frac{x+1}{x-1} \right)'$$
example 2:
$$\left( x^2 \, sin(x) \right)''$$
example 2:
Find the derivative of $f(x) = \frac{ln x}{x}$ at the point $x = e^2$.
example 3:
Find the local minimum of $f(x) = x^3 - 3x + 1$
example 4:
Find the local maximum of $f(x) = \frac{x^2 + x + 5}{x-1}$

## Examples of valid and invalid expressions

 Function to differentiate Correct syntax Incorrect syntax $$(2x+1)^6$$ (2x+1)^6 [2x+1]^6 $$\frac{10x + 1}{x^2-4}$$ (10x+1)/(x^2-4) 10x+1/x^2-4 $$\left(ln(x)\right)^2$$ ln(x)^2 ln^2(x) $$x ~ ln\left(\frac{x-1}{x+1}\right)$$ x*ln((x-1)/(x+1)) x*ln(x-1)/(x+1)

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