Aprendendo a Aprender - Alagoas Dev Day
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The document discusses concepts in computer science with references to prominent figures and their contributions, including Charles Babbage, John von Neumann, and Alan Turing. It also presents programming examples in Ruby related to counting and prime number generation, alongside performance benchmarking. The document emphasizes learning and innovation in the field of computer science through quotations and notable historical references.
Aprendendo a Aprender - Alagoas Dev Day
- 1. Aprendendo a Aprender Fabio Akita @akitaonrails
- 5. ?
- 6. +Fácil
- 7. +Elegante
- 18. John von Neumann (1903 – 1957)
- 19. Alan Mathison Turing (1912 – 1954)
- 21. “The Imitation Game" (2014 - Benedict Cumberbatch)
- 23. people = 20 count = 0 people.times do |person_a| people.times do |person_b| count += 1 if person_b > person_a end end puts count # => 190
- 24. people = 20 count = 0 people.times do |person_a| people.times do |person_b| count += 1 if person_b > person_a end end puts count # => 190
- 25. people = 20 count = 0 people.times do |person_a| people.times do |person_b| count += 1 if person_b > person_a end end puts count # => 190
- 26. people = 20 puts (people * (people - 1) / 2) # => 190
- 27. require 'benchmark' people = 10_000 Benchmark.bm do |x| x.report do count = 0 people.times do |person_a| people.times do |person_b| count += 1 if person_b > person_a end end puts count end x.report do puts (people * (people - 1) / 2) end end
- 28. require 'benchmark' people = 10_000 Benchmark.bm do |x| x.report do count = 0 people.times do |person_a| people.times do |person_b| count += 1 if person_b > person_a end end puts count end x.report do puts (people * (people - 1) / 2) end end
- 29. require 'benchmark' people = 10_000 Benchmark.bm do |x| x.report do count = 0 people.times do |person_a| people.times do |person_b| count += 1 if person_b > person_a end end puts count end x.report do puts (people * (people - 1) / 2) end end
- 30. require 'benchmark' people = 10_000 Benchmark.bm do |x| x.report do count = 0 people.times do |person_a| people.times do |person_b| count += 1 if person_b > person_a end end puts count end x.report do puts (people * (people - 1) / 2) end end
- 31. user system total real 190 0.000000 0.000000 0.000000 ( 0.000043) 190 0.000000 0.000000 0.000000 ( 0.000008)
- 32. user system total real 190 0.000000 0.000000 0.000000 ( 0.000043) 190 0.000000 0.000000 0.000000 ( 0.000008)
- 33. user system total real 190 0.000000 0.000000 0.000000 ( 0.000043) 190 0.000000 0.000000 0.000000 ( 0.000008)
- 34. user system total real 49995000 6.310000 0.000000 6.310000 ( 6.354882) 49995000 0.000000 0.000000 0.000000 ( 0.000011)
- 35. user system total real 49995000 6.310000 0.000000 6.310000 ( 6.354882) 49995000 0.000000 0.000000 0.000000 ( 0.000011)
- 36. user system total real 49995000 6.310000 0.000000 6.310000 ( 6.354882) 49995000 0.000000 0.000000 0.000000 ( 0.000011)
- 37. “The Social Network" (2010)
- 58. “I made up the term ‘object-oriented’, and I can tell you I didn’t have C++ in mind” - Alan Kay
- 59. soma = 1 + 2
- 60. soma = 1 + 2 soma = 1.+(2)
- 61. soma = 1 + 2 soma = 1.+(2) soma = 1.send(:+, 2)
- 63. Ole-Johan Dahl e Kristen Nygaard
- 64. require 'prime' gerador_de_primos = Fiber.new do numero = 1 loop do Fiber.yield(numero) if numero.prime? numero += 1 end end
- 65. require 'prime' gerador_de_primos = Fiber.new do numero = 1 loop do Fiber.yield(numero) if numero.prime? numero += 1 end end gerador_de_primos.resume => 2
- 66. require 'prime' gerador_de_primos = Fiber.new do numero = 1 loop do Fiber.yield(numero) if numero.prime? numero += 1 end end gerador_de_primos.resume => 2 gerador_de_primos.resume => 3
- 67. require 'prime' gerador_de_primos = Fiber.new do numero = 1 loop do Fiber.yield(numero) if numero.prime? numero += 1 end end gerador_de_primos.resume => 2 gerador_de_primos.resume => 3 gerador_de_primos.resume => 5
- 68. Gordon Moore - Intel co-founder
- 71. Gordon Bell - DEC early employee
- 77. Vaticano 2005
- 78. Vaticano 2013
- 79. Vaticano 2005
- 80. Vaticano 2013
- 83. Douglas Engelbart - 1925 a 2/Jul/2013
- 84. Douglas Engelbart - 1925 a 2/Jul/2013
- 85. Pablo Picasso Bons artistas Copiam Grandes artistas Roubam