Math

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Across
  1. 3. first black american to be inducted into the National Academy of Sciences
  2. 6. co-founded the black filmmakers hall of fame
  3. 8. created the digital computer Center at North Carolina college
  4. 10. made contributions to abstract and Graph theory
Down
  1. 1. first lady to chair the DC chair board
  2. 2. is a founder of mathematical astronomy
  3. 3. former chess champion, and a LGBT supporter
  4. 4. built america's first clock at 24
  5. 5. helped develop the technology for GPS
  6. 7. researches on Ergodic theory of dynamical system
  7. 9. second African american to receive a PhD in Mathematics