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:
Weekend Diversion: Superman vs. Baseball (Synopsis) - “If I had to choose a superhero to be, I would pick Superman. He’s everything that I’m not.” -Stephen Hawking But did you ever stop to imagine that one of ...
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