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- #!/usr/bin/ruby -Ku
- exit 1 if ARGV[1].nil?
- ARGV[1] = ARGV[1].to_F
- case ARGV[0]
- when 'sin'
- puts Math.sin(ARGV[1])
- when 'cos'
- puts Math.cos(ARGV[1])
- when 'tg'
- puts Math.tan(ARGV[1])
- else
- exit 1
- end
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