|$\KaTeX$ |Plain Text| | ------- | ------- | |$\cancel{5}$ | \cancel{5}| |$\bcancel{5}$ | \bcancel{5}| |$\overbrace{a+b+c}^{\text{note}}$ | \overbrace{a+b+c}^{\text{note}}| |$\underbrace{a+b+c}_{\text{note}}$ | \underbrace{a+b+c}_{\text{note}}| |$\xcancel{ABC}$ | \xcancel{ABC}| |$\sout{abc}$ | \sout{abc}| |$\not =$ | \not =| |$\boxed{\pi=\frac c d}$ | \boxed{\pi=\frac c d}|