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Math Handbook Calculator

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Input:
`d(f(x)*g(x)*h(x))`

Compute: $$\frac{d}{dx} f(x)\ g(x)\ h(x)$$

Result:
$$\frac{d}{dx} h(x)\ f(x)\ g(x)+(\frac{d}{dx} g(x)\ f(x)+\frac{d}{dx} f(x)\ g(x))\ h(x)$$

$$\frac{d}{dx} f(x)\ g(x)\ h(x) == \frac{d}{dx} h(x)\ f(x)\ g(x)+(\frac{d}{dx} g(x)\ f(x)+\frac{d}{dx} f(x)\ g(x))\ h(x)$$




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