TeX4PPT and TeXpoint. It's much more professional but it is not for free except for a one-month trial.
If you prefer knit clothing over latex, there are five relevant blogs:
LHC’s newest data: a victory for the Standard Model, defeat for new physics - “There is nothing new to be discovered in physics now. All that remains is more and more precise measurement.” -Lord Kelvin The particle physics ‘nightmare...
18 hours ago