subtitle 1#

content

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#include <iostream>
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int main() {
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    std::cout << "Hello, world" << std::endl;
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    return 0;
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}

$\alpha = \beta * \gamma$

$f'(x) = \frac{\mathrm{d}}{\mathrm{d}x} \int_0^{x^2} \frac{\sin t}{t} \mathrm{d}t = \frac{\sin(x^2)}{x^2} \cdot (x^2)' = \frac{\sin(x^2)}{x^2} \cdot 2x = \frac{2\sin(x^2)}{x}$