![amsmath - Is there any way to set up \ceil and \floor macros without installing the mathtools package? - TeX - LaTeX Stack Exchange amsmath - Is there any way to set up \ceil and \floor macros without installing the mathtools package? - TeX - LaTeX Stack Exchange](https://i.stack.imgur.com/Dieie.png)
amsmath - Is there any way to set up \ceil and \floor macros without installing the mathtools package? - TeX - LaTeX Stack Exchange
![10pcs/12pcs Rock And Roll Balloons 12inch Black Red Video Note Guitar Band Latex Ballons Birthday Music Radio Retro Party Decor - Ballons & Accessories - AliExpress 10pcs/12pcs Rock And Roll Balloons 12inch Black Red Video Note Guitar Band Latex Ballons Birthday Music Radio Retro Party Decor - Ballons & Accessories - AliExpress](https://ae01.alicdn.com/kf/H0c7765032ce0470189214f5976ddcc1cY/10pcs-12pcs-Rock-And-Roll-Balloons-12inch-Black-Red-Video-Note-Guitar-Band-Latex-Ballons-Birthday.jpg_Q90.jpg_.webp)
10pcs/12pcs Rock And Roll Balloons 12inch Black Red Video Note Guitar Band Latex Ballons Birthday Music Radio Retro Party Decor - Ballons & Accessories - AliExpress
![101 Pcs Football Balloons Mylar Latex Arch Garland Kit Balloon Bouquet Kids Boys Teenagers Sport Theme Birthday Party Decors Green 101 Pcs Football Balloons Mylar Latex Arch Garland Kit Balloon Bouquet Kids Boys Teenagers Sport Theme Birthday Party Decors Green](https://m.media-amazon.com/images/I/81AmzBQwmGL.jpg)