I would like to create something like thisthis.

Specifically my question is about how those curly braces below are drawn and labelled.

  • 2
    Have you considered the \underbrace macro? – Mico Jun 11 '18 at 8:12

equation is not complete (since you not provide code mwe), but finish it should not be a problem to you


\int\underbrace{\int_0^\pi \frac{2y}{R^2}\left( ... \sqrt{1-\frac{y}{4}}\right)dy}_{\mathcal{A}} dx

enter image description here

  • Its very clear, thanks @Zarko! +1 – Abdulhameed Jun 11 '18 at 8:14

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