tabler-icons/packages/icons/svg/function.svg

<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-function" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
  <path stroke="none" d="M0 0h24v24H0z" fill="none"/>
  <path d="M4 4m0 2.667a2.667 2.667 0 0 1 2.667 -2.667h10.666a2.667 2.667 0 0 1 2.667 2.667v10.666a2.667 2.667 0 0 1 -2.667 2.667h-10.666a2.667 2.667 0 0 1 -2.667 -2.667z" />
  <path d="M9 15.5v.25c0 .69 .56 1.25 1.25 1.25c.71 0 1.304 -.538 1.374 -1.244l.752 -7.512a1.381 1.381 0 0 1 1.374 -1.244c.69 0 1.25 .56 1.25 1.25v.25" />
  <path d="M9 12h6" />
</svg>